25144272 has 30 divisors (see below), whose sum is σ = 70369442. Its totient is φ = 8381376.

The previous prime is 25144219. The next prime is 25144279. The reversal of 25144272 is 27244152.

It can be written as a sum of positive squares in only one way, i.e., 22240656 + 2903616 = 4716^2 + 1704^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25144279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87163 + ... + 87450.

Almost surely, 2^25144272 is an apocalyptic number.

It is an amenable number.

25144272 is an abundant number, since it is smaller than the sum of its proper divisors (45225170).

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

25144272 is a wasteful number, since it uses less digits than its factorization.

25144272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174627 (or 174618 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 25144272 is about 5014.4064454330. The cubic root of 25144272 is about 292.9631671405.

It can be divided in two parts, 2514 and 4272, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 25144272 in words is "twenty-five million, one hundred forty-four thousand, two hundred seventy-two".