25390872 has 48 divisors (see below), whose sum is σ = 74059440. Its totient is φ = 7812288.

The previous prime is 25390853. The next prime is 25390901. The reversal of 25390872 is 27809352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12628 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (1542905).

Almost surely, 2^25390872 is an apocalyptic number.

It is an amenable number.

25390872 is an abundant number, since it is smaller than the sum of its proper divisors (48668568).

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

25390872 is a wasteful number, since it uses less digits than its factorization.

25390872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27152 (or 27145 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 25390872 is about 5038.9356018905. The cubic root of 25390872 is about 293.9177890363.

It can be divided in two parts, 25390 and 872, that added together give a palindrome (26262).

The spelling of 25390872 in words is "twenty-five million, three hundred ninety thousand, eight hundred seventy-two".