25234631 has 2 divisors, whose sum is σ = 25234632. Its totient is φ = 25234630.

The previous prime is 25234597. The next prime is 25234637. The reversal of 25234631 is 13643252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25234631 is a prime.

It is a super-2 number, since 2×25234631² = 1273573203412322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25234631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25234637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12617315 + 12617316.

It is an arithmetic number, because the mean of its divisors is an integer number (12617316).

Almost surely, 2^25234631 is an apocalyptic number.

25234631 is a deficient number, since it is larger than the sum of its proper divisors (1).

25234631 is an equidigital number, since it uses as much as digits as its factorization.

25234631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 25234631 is about 5023.4083051251. The cubic root of 25234631 is about 293.3136805302.

Adding to 25234631 its reverse (13643252), we get a palindrome (38877883).

The spelling of 25234631 in words is "twenty-five million, two hundred thirty-four thousand, six hundred thirty-one".