25356131 has 2 divisors, whose sum is σ = 25356132. Its totient is φ = 25356130.

The previous prime is 25356103. The next prime is 25356139. The reversal of 25356131 is 13165352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25356131 - 2¹⁰ = 25355107 is a prime.

It is a super-2 number, since 2×25356131² = 1285866758578322, 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 25356131.

It is not a weakly prime, because it can be changed into another prime (25356139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12678065 + 12678066.

It is an arithmetic number, because the mean of its divisors is an integer number (12678066).

Almost surely, 2^25356131 is an apocalyptic number.

25356131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25356131 is an equidigital number, since it uses as much as digits as its factorization.

25356131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 25356131 is about 5035.4871661042. The cubic root of 25356131 is about 293.7836770805.

The spelling of 25356131 in words is "twenty-five million, three hundred fifty-six thousand, one hundred thirty-one".