25031543232 has 28 divisors (see below), whose sum is σ = 66229291976. Its totient is φ = 8343847680.

The previous prime is 25031543231. The next prime is 25031543261. The reversal of 25031543232 is 23234513052.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25031543232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25031543231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65186119 + ... + 65186502.

Almost surely, 2^25031543232 is an apocalyptic number.

It is an amenable number.

25031543232 is an abundant number, since it is smaller than the sum of its proper divisors (41197748744).

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

25031543232 is a wasteful number, since it uses less digits than its factorization.

25031543232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130372636 (or 130372626 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 25031543232 in words is "twenty-five billion, thirty-one million, five hundred forty-three thousand, two hundred thirty-two".