625522451513 has 2 divisors, whose sum is σ = 625522451514. Its totient is φ = 625522451512.

The previous prime is 625522451497. The next prime is 625522451581. The reversal of 625522451513 is 315154225526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313121942329 + 312400509184 = 559573^2 + 558928^2 .

It is a cyclic number.

It is not a de Polignac number, because 625522451513 - 2⁴ = 625522451497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (625522451713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312761225756 + 312761225757.

It is an arithmetic number, because the mean of its divisors is an integer number (312761225757).

Almost surely, 2^625522451513 is an apocalyptic number.

It is an amenable number.

625522451513 is a deficient number, since it is larger than the sum of its proper divisors (1).

625522451513 is an equidigital number, since it uses as much as digits as its factorization.

625522451513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360000, while the sum is 41.

The spelling of 625522451513 in words is "six hundred twenty-five billion, five hundred twenty-two million, four hundred fifty-one thousand, five hundred thirteen".