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25252120515012 = 2232104343376251
BaseRepresentation
bin1011011110111011101111…
…01011000101000111000100
310022102002010200210210221020
411233131313223011013010
511302212320322440022
6125412355232151140
75214256041553236
oct557356753050704
9108362120723836
1025252120515012
118056400789096
1229ba0440984b0
1311123598586a1
146342cdcc2256
152dbceb63c35c
hex16f777ac51c4

25252120515012 has 12 divisors (see below), whose sum is σ = 58921614535056. Its totient is φ = 8417373505000.

The previous prime is 25252120515001. The next prime is 25252120515043. The reversal of 25252120515012 is 21051502125252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×252521205150122 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052171688114 + ... + 1052171688137.

It is an arithmetic number, because the mean of its divisors is an integer number (4910134544588).

Almost surely, 225252120515012 is an apocalyptic number.

It is an amenable number.

25252120515012 is an abundant number, since it is smaller than the sum of its proper divisors (33669494020044).

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

25252120515012 is a wasteful number, since it uses less digits than its factorization.

25252120515012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104343376258 (or 2104343376256 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 25252120515012 in words is "twenty-five trillion, two hundred fifty-two billion, one hundred twenty million, five hundred fifteen thousand, twelve".

Divisors: 1 2 3 4 6 12 2104343376251 4208686752502 6313030128753 8417373505004 12626060257506 25252120515012