25256330 has 24 divisors (see below), whose sum is σ = 49972356. Its totient is φ = 9183680.

The previous prime is 25256317. The next prime is 25256347. The reversal of 25256330 is 3365252.

It can be written as a sum of positive squares in 2 ways, for example, as 24611521 + 644809 = 4961^2 + 803^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25256330.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9227 + ... + 11646.

Almost surely, 2^25256330 is an apocalyptic number.

25256330 is a deficient number, since it is larger than the sum of its proper divisors (24716026).

25256330 is a wasteful number, since it uses less digits than its factorization.

25256330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20902 (or 20891 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 25256330 is about 5025.5676296315. The cubic root of 25256330 is about 293.3977289177.

The spelling of 25256330 in words is "twenty-five million, two hundred fifty-six thousand, three hundred thirty".