25302131 has 2 divisors, whose sum is σ = 25302132. Its totient is φ = 25302130.

The previous prime is 25302127. The next prime is 25302143. The reversal of 25302131 is 13120352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25302131 - 2² = 25302127 is a prime.

It is a super-2 number, since 2×25302131² = 1280395666282322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25302331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12651065 + 12651066.

It is an arithmetic number, because the mean of its divisors is an integer number (12651066).

Almost surely, 2^25302131 is an apocalyptic number.

25302131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25302131 is an equidigital number, since it uses as much as digits as its factorization.

25302131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 25302131 is about 5030.1223643168. The cubic root of 25302131 is about 293.5749755008.

Adding to 25302131 its reverse (13120352), we get a palindrome (38422483).

The spelling of 25302131 in words is "twenty-five million, three hundred two thousand, one hundred thirty-one".