25287474 has 16 divisors (see below), whose sum is σ = 50879808. Its totient is φ = 8378352.

The previous prime is 25287467. The next prime is 25287503. The reversal of 25287474 is 47478252.

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, 11617 + ... + 13620.

It is an arithmetic number, because the mean of its divisors is an integer number (3179988).

Almost surely, 2^25287474 is an apocalyptic number.

25287474 is an abundant number, since it is smaller than the sum of its proper divisors (25592334).

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

25287474 is a wasteful number, since it uses less digits than its factorization.

25287474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25409.

The product of its digits is 125440, while the sum is 39.

The square root of 25287474 is about 5028.6652304563. The cubic root of 25287474 is about 293.5182772521.

The spelling of 25287474 in words is "twenty-five million, two hundred eighty-seven thousand, four hundred seventy-four".