25231525772 has 24 divisors (see below), whose sum is σ = 45063369792. Its totient is φ = 12357072000.

The previous prime is 25231525771. The next prime is 25231525789. The reversal of 25231525772 is 27752513252.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25231525771) 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, 28397 + ... + 226427.

It is an arithmetic number, because the mean of its divisors is an integer number (1877640408).

Almost surely, 2^25231525772 is an apocalyptic number.

It is an amenable number.

25231525772 is a deficient number, since it is larger than the sum of its proper divisors (19831844020).

25231525772 is a wasteful number, since it uses less digits than its factorization.

25231525772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198689 (or 198687 counting only the distinct ones).

The product of its digits is 294000, while the sum is 41.

The spelling of 25231525772 in words is "twenty-five billion, two hundred thirty-one million, five hundred twenty-five thousand, seven hundred seventy-two".