25182972 has 18 divisors (see below), whose sum is σ = 63657048. Its totient is φ = 8394312.

The previous prime is 25182959. The next prime is 25183007. The reversal of 25182972 is 27928152.

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

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 699527 = 25182972 / (2 + 5 + 1 + 8 + 2 + 9 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349728 + ... + 349799.

Almost surely, 2^25182972 is an apocalyptic number.

It is an amenable number.

25182972 is an abundant number, since it is smaller than the sum of its proper divisors (38474076).

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

25182972 is a wasteful number, since it uses less digits than its factorization.

25182972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699537 (or 699532 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 25182972 is about 5018.2638432031. The cubic root of 25182972 is about 293.1133917174.

The spelling of 25182972 in words is "twenty-five million, one hundred eighty-two thousand, nine hundred seventy-two".