25513272 has 64 divisors (see below), whose sum is σ = 73332000. Its totient is φ = 8209152.

The previous prime is 25513261. The next prime is 25513283. The reversal of 25513272 is 27231552.

It is an interprime number because it is at equal distance from previous prime (25513261) and next prime (25513283).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4228 + ... + 8300.

Almost surely, 2^25513272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25513272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36666000).

25513272 is an abundant number, since it is smaller than the sum of its proper divisors (47818728).

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

25513272 is a wasteful number, since it uses less digits than its factorization.

25513272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117 (or 4107 counting only the distinct ones).

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

The square root of 25513272 is about 5051.0664220539. The cubic root of 25513272 is about 294.3893217909.

The spelling of 25513272 in words is "twenty-five million, five hundred thirteen thousand, two hundred seventy-two".