25097972 has 12 divisors (see below), whose sum is σ = 45338496. Its totient is φ = 12144120.

The previous prime is 25097971. The next prime is 25097987. The reversal of 25097972 is 27979052.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25097971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101078 + ... + 101325.

It is an arithmetic number, because the mean of its divisors is an integer number (3778208).

Almost surely, 2^25097972 is an apocalyptic number.

It is an amenable number.

25097972 is a deficient number, since it is larger than the sum of its proper divisors (20240524).

25097972 is a wasteful number, since it uses less digits than its factorization.

25097972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202438 (or 202436 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 25097972 is about 5009.7876202490. The cubic root of 25097972 is about 292.7832384375.

The spelling of 25097972 in words is "twenty-five million, ninety-seven thousand, nine hundred seventy-two".