25631167 has 2 divisors, whose sum is σ = 25631168. Its totient is φ = 25631166.

The previous prime is 25631159. The next prime is 25631173. The reversal of 25631167 is 76113652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25631167 - 2³ = 25631159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25631107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12815583 + 12815584.

It is an arithmetic number, because the mean of its divisors is an integer number (12815584).

Almost surely, 2^25631167 is an apocalyptic number.

25631167 is a deficient number, since it is larger than the sum of its proper divisors (1).

25631167 is an equidigital number, since it uses as much as digits as its factorization.

25631167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 25631167 is about 5062.7232790268. The cubic root of 25631167 is about 294.8420757713.

The spelling of 25631167 in words is "twenty-five million, six hundred thirty-one thousand, one hundred sixty-seven".