625164313 has 2 divisors, whose sum is σ = 625164314. Its totient is φ = 625164312.

The previous prime is 625164233. The next prime is 625164329. The reversal of 625164313 is 313461526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430645504 + 194518809 = 20752^2 + 13947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625164313 is a prime.

It is not a weakly prime, because it can be changed into another prime (625164373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312582156 + 312582157.

It is an arithmetic number, because the mean of its divisors is an integer number (312582157).

Almost surely, 2^625164313 is an apocalyptic number.

It is an amenable number.

625164313 is a deficient number, since it is larger than the sum of its proper divisors (1).

625164313 is an equidigital number, since it uses as much as digits as its factorization.

625164313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 625164313 is about 25003.2860440383. The cubic root of 625164313 is about 855.0628924474.

The spelling of 625164313 in words is "six hundred twenty-five million, one hundred sixty-four thousand, three hundred thirteen".