25056013 has 2 divisors, whose sum is σ = 25056014. Its totient is φ = 25056012.

The previous prime is 25055999. The next prime is 25056019. The reversal of 25056013 is 31065052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23794884 + 1261129 = 4878^2 + 1123^2 .

It is a cyclic number.

It is not a de Polignac number, because 25056013 - 2⁵ = 25055981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25056019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12528006 + 12528007.

It is an arithmetic number, because the mean of its divisors is an integer number (12528007).

Almost surely, 2^25056013 is an apocalyptic number.

It is an amenable number.

25056013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25056013 is an equidigital number, since it uses as much as digits as its factorization.

25056013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 25056013 is about 5005.5981660537. The cubic root of 25056013 is about 292.6199882718.

The spelling of 25056013 in words is "twenty-five million, fifty-six thousand, thirteen".