25620424 has 16 divisors (see below), whose sum is σ = 48116700. Its totient is φ = 12789312.

The previous prime is 25620409. The next prime is 25620431. The reversal of 25620424 is 42402652.

It can be written as a sum of positive squares in 2 ways, for example, as 18232900 + 7387524 = 4270^2 + 2718^2 .

It is a super-2 number, since 2×25620424² = 1312812251879552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3414 + ... + 7930.

Almost surely, 2^25620424 is an apocalyptic number.

It is an amenable number.

25620424 is a deficient number, since it is larger than the sum of its proper divisors (22496276).

25620424 is a wasteful number, since it uses less digits than its factorization.

25620424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5232 (or 5228 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 25620424 is about 5061.6621775855. The cubic root of 25620424 is about 294.8008768270.

The spelling of 25620424 in words is "twenty-five million, six hundred twenty thousand, four hundred twenty-four".