25615057016 has 32 divisors (see below), whose sum is σ = 48743785200. Its totient is φ = 12617130240.

The previous prime is 25615057009. The next prime is 25615057019. The reversal of 25615057016 is 61075051652.

It is a super-2 number, since 2×25615057016² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25615057019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476126 + ... + 527186.

Almost surely, 2^25615057016 is an apocalyptic number.

It is an amenable number.

25615057016 is a deficient number, since it is larger than the sum of its proper divisors (23128728184).

25615057016 is a wasteful number, since it uses less digits than its factorization.

25615057016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51999 (or 51995 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 25615057016 in words is "twenty-five billion, six hundred fifteen million, fifty-seven thousand, sixteen".