25652631 has 4 divisors (see below), whose sum is σ = 34203512. Its totient is φ = 17101752.

The previous prime is 25652629. The next prime is 25652633. The reversal of 25652631 is 13625652.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (25652629) and next prime (25652633).

It is not a de Polignac number, because 25652631 - 2¹ = 25652629 is a prime.

It is a super-2 number, since 2×25652631² = 1316114954444322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25652633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275436 + ... + 4275441.

It is an arithmetic number, because the mean of its divisors is an integer number (8550878).

Almost surely, 2^25652631 is an apocalyptic number.

25652631 is a deficient number, since it is larger than the sum of its proper divisors (8550881).

25652631 is an equidigital number, since it uses as much as digits as its factorization.

25652631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550880.

The product of its digits is 10800, while the sum is 30.

The square root of 25652631 is about 5064.8426431628. The cubic root of 25652631 is about 294.9243548264.

The spelling of 25652631 in words is "twenty-five million, six hundred fifty-two thousand, six hundred thirty-one".