625113689 has 2 divisors, whose sum is σ = 625113690. Its totient is φ = 625113688.

The previous prime is 625113659. The next prime is 625113703. The reversal of 625113689 is 986311526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 580424464 + 44689225 = 24092^2 + 6685^2 .

It is a cyclic number.

It is not a de Polignac number, because 625113689 - 2²⁴ = 608336473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (625113659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312556844 + 312556845.

It is an arithmetic number, because the mean of its divisors is an integer number (312556845).

Almost surely, 2^625113689 is an apocalyptic number.

It is an amenable number.

625113689 is a deficient number, since it is larger than the sum of its proper divisors (1).

625113689 is an equidigital number, since it uses as much as digits as its factorization.

625113689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 625113689 is about 25002.2736766079. The cubic root of 625113689 is about 855.0398116501.

The spelling of 625113689 in words is "six hundred twenty-five million, one hundred thirteen thousand, six hundred eighty-nine".