25572665112 has 32 divisors (see below), whose sum is σ = 64391611200. Its totient is φ = 8462895264.

The previous prime is 25572665081. The next prime is 25572665137. The reversal of 25572665112 is 21156627552.

It is a super-2 number, since 2×25572665112² (a number of 22 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, 3829498 + ... + 3836169.

It is an arithmetic number, because the mean of its divisors is an integer number (2012237850).

Almost surely, 2^25572665112 is an apocalyptic number.

It is an amenable number.

25572665112 is an abundant number, since it is smaller than the sum of its proper divisors (38818946088).

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

25572665112 is a wasteful number, since it uses less digits than its factorization.

25572665112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7665815 (or 7665811 counting only the distinct ones).

The product of its digits is 252000, while the sum is 42.

The spelling of 25572665112 in words is "twenty-five billion, five hundred seventy-two million, six hundred sixty-five thousand, one hundred twelve".