625895857 has 2 divisors, whose sum is σ = 625895858. Its totient is φ = 625895856.

The previous prime is 625895839. The next prime is 625895869. The reversal of 625895857 is 758598526.

625895857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 609053041 + 16842816 = 24679^2 + 4104^2 .

It is a cyclic number.

It is not a de Polignac number, because 625895857 - 2¹⁵ = 625863089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625895798 and 625895807.

It is not a weakly prime, because it can be changed into another prime (625895827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312947928 + 312947929.

It is an arithmetic number, because the mean of its divisors is an integer number (312947929).

Almost surely, 2^625895857 is an apocalyptic number.

It is an amenable number.

625895857 is a deficient number, since it is larger than the sum of its proper divisors (1).

625895857 is an equidigital number, since it uses as much as digits as its factorization.

625895857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048000, while the sum is 55.

The square root of 625895857 is about 25017.9107241192. The cubic root of 625895857 is about 855.3962833596.

The spelling of 625895857 in words is "six hundred twenty-five million, eight hundred ninety-five thousand, eight hundred fifty-seven".