25309619132 has 48 divisors (see below), whose sum is σ = 50998671360. Its totient is φ = 10765977600.

The previous prime is 25309619119. The next prime is 25309619143. The reversal of 25309619132 is 23191690352.

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 a self number, because there is not a number n which added to its sum of digits gives 25309619132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2075132 + ... + 2087292.

It is an arithmetic number, because the mean of its divisors is an integer number (1062472320).

Almost surely, 2^25309619132 is an apocalyptic number.

It is an amenable number.

25309619132 is an abundant number, since it is smaller than the sum of its proper divisors (25689052228).

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

25309619132 is a wasteful number, since it uses less digits than its factorization.

25309619132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12722 (or 12720 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 25309619132 in words is "twenty-five billion, three hundred nine million, six hundred nineteen thousand, one hundred thirty-two".