25236413 has 2 divisors, whose sum is σ = 25236414. Its totient is φ = 25236412.

The previous prime is 25236401. The next prime is 25236461. The reversal of 25236413 is 31463252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23551609 + 1684804 = 4853^2 + 1298^2 .

It is a cyclic number.

It is not a de Polignac number, because 25236413 - 2⁶ = 25236349 is a prime.

It is a super-2 number, since 2×25236413² = 1273753082213138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25232413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12618206 + 12618207.

It is an arithmetic number, because the mean of its divisors is an integer number (12618207).

Almost surely, 2^25236413 is an apocalyptic number.

It is an amenable number.

25236413 is a deficient number, since it is larger than the sum of its proper divisors (1).

25236413 is an equidigital number, since it uses as much as digits as its factorization.

25236413 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 25236413 is about 5023.5856716095. The cubic root of 25236413 is about 293.3205847019.

Adding to 25236413 its reverse (31463252), we get a palindrome (56699665).

The spelling of 25236413 in words is "twenty-five million, two hundred thirty-six thousand, four hundred thirteen".