25402872 has 32 divisors (see below), whose sum is σ = 69281280. Its totient is φ = 7697760.

The previous prime is 25402859. The next prime is 25402873. The reversal of 25402872 is 27820452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25402873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47848 + ... + 48375.

It is an arithmetic number, because the mean of its divisors is an integer number (2165040).

Almost surely, 2^25402872 is an apocalyptic number.

25402872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25402872 is an abundant number, since it is smaller than the sum of its proper divisors (43878408).

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

25402872 is a wasteful number, since it uses less digits than its factorization.

25402872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96243 (or 96239 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 25402872 is about 5040.1261888965. The cubic root of 25402872 is about 293.9640846497.

The spelling of 25402872 in words is "twenty-five million, four hundred two thousand, eight hundred seventy-two".