572503666 has 16 divisors (see below), whose sum is σ = 997525440. Its totient is φ = 241336080.

The previous prime is 572503661. The next prime is 572503669. The reversal of 572503666 is 666305275.

It is not an unprimeable number, because it can be changed into a prime (572503661) 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, 334336 + ... + 336043.

It is an arithmetic number, because the mean of its divisors is an integer number (62345340).

Almost surely, 2^572503666 is an apocalyptic number.

572503666 is a deficient number, since it is larger than the sum of its proper divisors (425021774).

572503666 is a wasteful number, since it uses less digits than its factorization.

572503666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670449.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 572503666 is about 23927.0488359931. The cubic root of 572503666 is about 830.3466235013.

The spelling of 572503666 in words is "five hundred seventy-two million, five hundred three thousand, six hundred sixty-six".