625063913 has 2 divisors, whose sum is σ = 625063914. Its totient is φ = 625063912.

The previous prime is 625063909. The next prime is 625063937. The reversal of 625063913 is 319360526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357512464 + 267551449 = 18908^2 + 16357^2 .

It is a cyclic number.

It is not a de Polignac number, because 625063913 - 2² = 625063909 is a prime.

It is not a weakly prime, because it can be changed into another prime (625063213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312531956 + 312531957.

It is an arithmetic number, because the mean of its divisors is an integer number (312531957).

Almost surely, 2^625063913 is an apocalyptic number.

It is an amenable number.

625063913 is a deficient number, since it is larger than the sum of its proper divisors (1).

625063913 is an equidigital number, since it uses as much as digits as its factorization.

625063913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 625063913 is about 25001.2782273227. The cubic root of 625063913 is about 855.0171162630.

The spelling of 625063913 in words is "six hundred twenty-five million, sixty-three thousand, nine hundred thirteen".