25255523524 has 24 divisors (see below), whose sum is σ = 55102961088. Its totient is φ = 9839814240.

The previous prime is 25255523443. The next prime is 25255523533. The reversal of 25255523524 is 42532555252.

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, 40998919 + ... + 40999534.

It is an arithmetic number, because the mean of its divisors is an integer number (2295956712).

Almost surely, 2^25255523524 is an apocalyptic number.

It is an amenable number.

25255523524 is an abundant number, since it is smaller than the sum of its proper divisors (29847437564).

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

25255523524 is a wasteful number, since it uses less digits than its factorization.

25255523524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81998475 (or 81998473 counting only the distinct ones).

The product of its digits is 600000, while the sum is 40.

The spelling of 25255523524 in words is "twenty-five billion, two hundred fifty-five million, five hundred twenty-three thousand, five hundred twenty-four".