625628620 has 12 divisors (see below), whose sum is σ = 1313820144. Its totient is φ = 250251440.

The previous prime is 625628617. The next prime is 625628623. The reversal of 625628620 is 26826526.

It is an interprime number because it is at equal distance from previous prime (625628617) and next prime (625628623).

It is a super-2 number, since 2×625628620² = 782822340326208800, 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 625628620.

It is not an unprimeable number, because it can be changed into a prime (625628623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15640696 + ... + 15640735.

It is an arithmetic number, because the mean of its divisors is an integer number (109485012).

Almost surely, 2^625628620 is an apocalyptic number.

It is an amenable number.

625628620 is an abundant number, since it is smaller than the sum of its proper divisors (688191524).

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

625628620 is a wasteful number, since it uses less digits than its factorization.

625628620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31281440 (or 31281438 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 625628620 is about 25012.5692402840. The cubic root of 625628620 is about 855.2745239776.

The spelling of 625628620 in words is "six hundred twenty-five million, six hundred twenty-eight thousand, six hundred twenty".