625413938 has 4 divisors (see below), whose sum is σ = 938120910. Its totient is φ = 312706968.

The previous prime is 625413911. The next prime is 625413967. The reversal of 625413938 is 839314526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 494929009 + 130484929 = 22247^2 + 11423^2 .

It is a super-2 number, since 2×625413938² = 782285187689335688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 625413895 and 625413904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156353483 + ... + 156353486.

Almost surely, 2^625413938 is an apocalyptic number.

625413938 is a deficient number, since it is larger than the sum of its proper divisors (312706972).

625413938 is a wasteful number, since it uses less digits than its factorization.

625413938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312706971.

The product of its digits is 155520, while the sum is 41.

The square root of 625413938 is about 25008.2773896964. The cubic root of 625413938 is about 855.1766847561.

The spelling of 625413938 in words is "six hundred twenty-five million, four hundred thirteen thousand, nine hundred thirty-eight".