625222664 has 32 divisors (see below), whose sum is σ = 1346176800. Its totient is φ = 269233920.

The previous prime is 625222613. The next prime is 625222667. The reversal of 625222664 is 466222526.

It is not an unprimeable number, because it can be changed into a prime (625222667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185297 + ... + 188640.

It is an arithmetic number, because the mean of its divisors is an integer number (42068025).

Almost surely, 2^625222664 is an apocalyptic number.

It is an amenable number.

625222664 is an abundant number, since it is smaller than the sum of its proper divisors (720954136).

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

625222664 is a wasteful number, since it uses less digits than its factorization.

625222664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373973 (or 373969 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 625222664 is about 25004.4528834366. The cubic root of 625222664 is about 855.0894946390.

The spelling of 625222664 in words is "six hundred twenty-five million, two hundred twenty-two thousand, six hundred sixty-four".