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25213504542320 = 2451081792913401
BaseRepresentation
bin1011011101110011110011…
…11110110101011001110000
310022021101110111001010222102
411232321321332311121300
511301044224130323240
6125342531333555532
75211421101321413
oct556717176653160
9108241414033872
1025213504542320
118040a94aaa276
1229b26677a5ba8
13110b8144515c3
146324a9469b7a
152dacdb3e2815
hex16ee79fb5670

25213504542320 has 40 divisors (see below), whose sum is σ = 58621960074960. Its totient is φ = 10085305126400.

The previous prime is 25213504542311. The next prime is 25213504542371. The reversal of 25213504542320 is 2324540531252.

25213504542320 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×252135045423202 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7197620 + ... + 10111020.

It is an arithmetic number, because the mean of its divisors is an integer number (1465549001874).

Almost surely, 225213504542320 is an apocalyptic number.

25213504542320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25213504542320 is an abundant number, since it is smaller than the sum of its proper divisors (33408455532640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25213504542320 is a wasteful number, since it uses less digits than its factorization.

25213504542320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021593 (or 3021587 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 25213504542320 in words is "twenty-five trillion, two hundred thirteen billion, five hundred four million, five hundred forty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 108179 216358 432716 540895 865432 1081790 1730864 2163580 2913401 4327160 5826802 8654320 11653604 14567005 23307208 29134010 46614416 58268020 116536040 233072080 315168806779 630337613558 1260675227116 1575844033895 2521350454232 3151688067790 5042700908464 6303376135580 12606752271160 25213504542320