25264157 has 2 divisors, whose sum is σ = 25264158. Its totient is φ = 25264156.

The previous prime is 25264153. The next prime is 25264171. The reversal of 25264157 is 75146252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25260676 + 3481 = 5026^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 25264157 - 2² = 25264153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25264153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632078 + 12632079.

It is an arithmetic number, because the mean of its divisors is an integer number (12632079).

Almost surely, 2^25264157 is an apocalyptic number.

It is an amenable number.

25264157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25264157 is an equidigital number, since it uses as much as digits as its factorization.

25264157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 32.

The square root of 25264157 is about 5026.3462873145. The cubic root of 25264157 is about 293.4280340180.

The spelling of 25264157 in words is "twenty-five million, two hundred sixty-four thousand, one hundred fifty-seven".