25531272 has 48 divisors (see below), whose sum is σ = 74468940. Its totient is φ = 7855488.

The previous prime is 25531271. The next prime is 25531277. The reversal of 25531272 is 27213552.

It can be written as a sum of positive squares in 2 ways, for example, as 22524516 + 3006756 = 4746^2 + 1734^2 .

It is not an unprimeable number, because it can be changed into a prime (25531271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12703 + ... + 14574.

Almost surely, 2^25531272 is an apocalyptic number.

It is an amenable number.

25531272 is an abundant number, since it is smaller than the sum of its proper divisors (48937668).

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

25531272 is a wasteful number, since it uses less digits than its factorization.

25531272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27302 (or 27295 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 25531272 is about 5052.8479098425. The cubic root of 25531272 is about 294.4585375584.

The spelling of 25531272 in words is "twenty-five million, five hundred thirty-one thousand, two hundred seventy-two".