25424709372 has 18 divisors (see below), whose sum is σ = 64268015448. Its totient is φ = 8474903112.

The previous prime is 25424709319. The next prime is 25424709377. The reversal of 25424709372 is 27390742452.

25424709372 is a `hidden beast` number, since 2 + 5 + 424 + 70 + 93 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25424709377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 353120928 + ... + 353120999.

Almost surely, 2^25424709372 is an apocalyptic number.

It is an amenable number.

25424709372 is an abundant number, since it is smaller than the sum of its proper divisors (38843306076).

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

25424709372 is a wasteful number, since it uses less digits than its factorization.

25424709372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706241937 (or 706241932 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 25424709372 in words is "twenty-five billion, four hundred twenty-four million, seven hundred nine thousand, three hundred seventy-two".