25287172 has 6 divisors (see below), whose sum is σ = 44252558. Its totient is φ = 12643584.

The previous prime is 25287167. The next prime is 25287191. The reversal of 25287172 is 27178252.

It can be written as a sum of positive squares in only one way, i.e., 22410756 + 2876416 = 4734^2 + 1696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160893 + ... + 3160900.

Almost surely, 2^25287172 is an apocalyptic number.

It is an amenable number.

25287172 is a deficient number, since it is larger than the sum of its proper divisors (18965386).

25287172 is a wasteful number, since it uses less digits than its factorization.

25287172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321797 (or 6321795 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 25287172 is about 5028.6352025177. The cubic root of 25287172 is about 293.5171087833.

The spelling of 25287172 in words is "twenty-five million, two hundred eighty-seven thousand, one hundred seventy-two".