25256427 has 16 divisors (see below), whose sum is σ = 38556672. Its totient is φ = 14405760.

The previous prime is 25256383. The next prime is 25256431. The reversal of 25256427 is 72465252.

It is not a de Polignac number, because 25256427 - 2⁷ = 25256299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25256447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19902 + ... + 21132.

It is an arithmetic number, because the mean of its divisors is an integer number (2409792).

Almost surely, 2^25256427 is an apocalyptic number.

25256427 is a deficient number, since it is larger than the sum of its proper divisors (13300245).

25256427 is a wasteful number, since it uses less digits than its factorization.

25256427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218.

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

The square root of 25256427 is about 5025.5772802734. The cubic root of 25256427 is about 293.3981045271.

The spelling of 25256427 in words is "twenty-five million, two hundred fifty-six thousand, four hundred twenty-seven".