620494925 has 6 divisors (see below), whose sum is σ = 769413738. Its totient is φ = 496395920.

The previous prime is 620494909. The next prime is 620494937. The reversal of 620494925 is 529494026.

It is a happy number.

620494925 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10355524 + 610139401 = 3218^2 + 24701^2 .

It is not a de Polignac number, because 620494925 - 2⁴ = 620494909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12409874 + ... + 12409923.

It is an arithmetic number, because the mean of its divisors is an integer number (128235623).

Almost surely, 2^620494925 is an apocalyptic number.

It is an amenable number.

620494925 is a deficient number, since it is larger than the sum of its proper divisors (148918813).

620494925 is a wasteful number, since it uses less digits than its factorization.

620494925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24819807 (or 24819802 counting only the distinct ones).

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

The square root of 620494925 is about 24909.7355465689. The cubic root of 620494925 is about 852.9287323288.

The spelling of 620494925 in words is "six hundred twenty million, four hundred ninety-four thousand, nine hundred twenty-five".