625071620 has 12 divisors (see below), whose sum is σ = 1312650444. Its totient is φ = 250028640.

The previous prime is 625071619. The next prime is 625071641. The reversal of 625071620 is 26170526.

It can be written as a sum of positive squares in 2 ways, for example, as 394578496 + 230493124 = 19864^2 + 15182^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15626771 + ... + 15626810.

It is an arithmetic number, because the mean of its divisors is an integer number (109387537).

Almost surely, 2^625071620 is an apocalyptic number.

It is an amenable number.

625071620 is an abundant number, since it is smaller than the sum of its proper divisors (687578824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625071620 is a wasteful number, since it uses less digits than its factorization.

625071620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31253590 (or 31253588 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 625071620 is about 25001.4323589670. The cubic root of 625071620 is about 855.0206303516.

The spelling of 625071620 in words is "six hundred twenty-five million, seventy-one thousand, six hundred twenty".