25363831 has 2 divisors, whose sum is σ = 25363832. Its totient is φ = 25363830.

The previous prime is 25363829. The next prime is 25363873. The reversal of 25363831 is 13836352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25363831 - 2¹ = 25363829 is a prime.

It is a super-2 number, since 2×25363831² = 1286647845993122, which contains 22 as substring.

Together with 25363829, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25363793 and 25363802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25363531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12681915 + 12681916.

It is an arithmetic number, because the mean of its divisors is an integer number (12681916).

Almost surely, 2^25363831 is an apocalyptic number.

25363831 is a deficient number, since it is larger than the sum of its proper divisors (1).

25363831 is an equidigital number, since it uses as much as digits as its factorization.

25363831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 25363831 is about 5036.2516815584. The cubic root of 25363831 is about 293.8134122344.

The spelling of 25363831 in words is "twenty-five million, three hundred sixty-three thousand, eight hundred thirty-one".