625413939 has 16 divisors (see below), whose sum is σ = 853058304. Its totient is φ = 407420000.

The previous prime is 625413911. The next prime is 625413967. The reversal of 625413939 is 939314526.

It is a happy number.

625413939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (625413911) and next prime (625413967).

It is a cyclic number.

It is not a de Polignac number, because 625413939 - 2⁸ = 625413683 is a prime.

It is a super-2 number, since 2×625413939² = 782285190190991442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 625413939.

It is not an unprimeable number, because it can be changed into a prime (625413989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32074 + ... + 47744.

It is an arithmetic number, because the mean of its divisors is an integer number (53316144).

Almost surely, 2^625413939 is an apocalyptic number.

625413939 is a deficient number, since it is larger than the sum of its proper divisors (227644365).

625413939 is a wasteful number, since it uses less digits than its factorization.

625413939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15978.

The product of its digits is 174960, while the sum is 42.

The square root of 625413939 is about 25008.2774096898. The cubic root of 625413939 is about 855.1766852119.

The spelling of 625413939 in words is "six hundred twenty-five million, four hundred thirteen thousand, nine hundred thirty-nine".