25297342924 has 24 divisors (see below), whose sum is σ = 51828704928. Its totient is φ = 10577285760.

The previous prime is 25297342909. The next prime is 25297342963. The reversal of 25297342924 is 42924379252.

It is a happy number.

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, 11016859 + ... + 11019154.

It is an arithmetic number, because the mean of its divisors is an integer number (2159529372).

Almost surely, 2^25297342924 is an apocalyptic number.

It is an amenable number.

25297342924 is an abundant number, since it is smaller than the sum of its proper divisors (26531362004).

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

25297342924 is a wasteful number, since it uses less digits than its factorization.

25297342924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22036065 (or 22036063 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

The spelling of 25297342924 in words is "twenty-five billion, two hundred ninety-seven million, three hundred forty-two thousand, nine hundred twenty-four".