25264913 has 2 divisors, whose sum is σ = 25264914. Its totient is φ = 25264912.

The previous prime is 25264903. The next prime is 25264933. The reversal of 25264913 is 31946252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13786369 + 11478544 = 3713^2 + 3388^2 .

It is a cyclic number.

It is not a de Polignac number, because 25264913 - 2²⁰ = 24216337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25264913.

It is not a weakly prime, because it can be changed into another prime (25264903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632456 + 12632457.

It is an arithmetic number, because the mean of its divisors is an integer number (12632457).

Almost surely, 2^25264913 is an apocalyptic number.

It is an amenable number.

25264913 is a deficient number, since it is larger than the sum of its proper divisors (1).

25264913 is an equidigital number, since it uses as much as digits as its factorization.

25264913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 25264913 is about 5026.4214904841. The cubic root of 25264913 is about 293.4309608177.

It can be divided in two parts, 25264 and 913, that multiplied together give a palindrome (23066032).

The spelling of 25264913 in words is "twenty-five million, two hundred sixty-four thousand, nine hundred thirteen".