572625909 has 32 divisors (see below), whose sum is σ = 929232000. Its totient is φ = 346897152.

The previous prime is 572625877. The next prime is 572625913. The reversal of 572625909 is 909526275.

572625909 is a `hidden beast` number, since 57 + 2 + 6 + 2 + 590 + 9 = 666.

It is not a de Polignac number, because 572625909 - 2⁵ = 572625877 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572629909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8199 + ... + 34820.

It is an arithmetic number, because the mean of its divisors is an integer number (29038500).

Almost surely, 2^572625909 is an apocalyptic number.

It is an amenable number.

572625909 is a deficient number, since it is larger than the sum of its proper divisors (356606091).

572625909 is a wasteful number, since it uses less digits than its factorization.

572625909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43074 (or 43068 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 572625909 is about 23929.6031935342. The cubic root of 572625909 is about 830.4057188077.

The spelling of 572625909 in words is "five hundred seventy-two million, six hundred twenty-five thousand, nine hundred nine".