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25305500280053 = 7231311199824583
BaseRepresentation
bin1011100000011111001010…
…10110101110010011110101
310022121011220211020211121002
411300033211112232103311
511304101131032430203
6125453104125533045
75221155613225340
oct560174526562365
9108534824224532
1025305500280053
118077003216694
122a08460a14185
1311173b5887b86
14636b15433457
152dd3c2a8dd88
hex1703e55ae4f5

25305500280053 has 16 divisors (see below), whose sum is σ = 30408354256896. Its totient is φ = 20588989827120.

The previous prime is 25305500279989. The next prime is 25305500280079. The reversal of 25305500280053 is 35008200550352.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25305500280053 - 26 = 25305500279989 is a prime.

It is a super-2 number, since 2×253055002800532 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25305500279989 and 25305500280016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25305500280353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599891201 + ... + 599933382.

It is an arithmetic number, because the mean of its divisors is an integer number (1900522141056).

Almost surely, 225305500280053 is an apocalyptic number.

25305500280053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25305500280053 is a deficient number, since it is larger than the sum of its proper divisors (5102853976843).

25305500280053 is a wasteful number, since it uses less digits than its factorization.

25305500280053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199824744.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 25305500280053 in words is "twenty-five trillion, three hundred five billion, five hundred million, two hundred eighty thousand, fifty-three".

Divisors: 1 7 23 131 161 917 3013 21091 1199824583 8398772081 27595965409 157177020373 193171757863 1100239142611 3615071468579 25305500280053