25624275 has 24 divisors (see below), whose sum is σ = 42668400. Its totient is φ = 13568640.

The previous prime is 25624271. The next prime is 25624283. The reversal of 25624275 is 57242652.

It is not a de Polignac number, because 25624275 - 2² = 25624271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25624271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10029 + ... + 12321.

It is an arithmetic number, because the mean of its divisors is an integer number (1777850).

Almost surely, 2^25624275 is an apocalyptic number.

25624275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25624275 is a deficient number, since it is larger than the sum of its proper divisors (17044125).

25624275 is a wasteful number, since it uses less digits than its factorization.

25624275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455 (or 2450 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 25624275 is about 5062.0425719269. The cubic root of 25624275 is about 294.8156465709.

It can be divided in two parts, 256 and 24275, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 25624275 in words is "twenty-five million, six hundred twenty-four thousand, two hundred seventy-five".