625668825 has 12 divisors (see below), whose sum is σ = 1034439248. Its totient is φ = 333690000.

The previous prime is 625668821. The next prime is 625668851. The reversal of 625668825 is 528866526.

It is not a de Polignac number, because 625668825 - 2² = 625668821 is a prime.

It is a super-2 number, since 2×625668825² = 782922957153761250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625668821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4171051 + ... + 4171200.

Almost surely, 2^625668825 is an apocalyptic number.

It is an amenable number.

625668825 is a deficient number, since it is larger than the sum of its proper divisors (408770423).

625668825 is a wasteful number, since it uses less digits than its factorization.

625668825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8342264 (or 8342259 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 625668825 is about 25013.3729232984. The cubic root of 625668825 is about 855.2928445246.

The spelling of 625668825 in words is "six hundred twenty-five million, six hundred sixty-eight thousand, eight hundred twenty-five".