572666 has 4 divisors (see below), whose sum is σ = 859002. Its totient is φ = 286332.

The previous prime is 572659. The next prime is 572683. The reversal of 572666 is 666275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 143641 = 655^2 + 379^2 .

572666 is a modest number, since divided by 666 gives 572 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143165 + ... + 143168.

2⁵⁷²⁶⁶⁶ is an apocalyptic number.

572666 is a deficient number, since it is larger than the sum of its proper divisors (286336).

572666 is a wasteful number, since it uses less digits than its factorization.

572666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286335.

The product of its digits is 15120, while the sum is 32.

The square root of 572666 is about 756.7469854582. The cubic root of 572666 is about 83.0425097963.

The spelling of 572666 in words is "five hundred seventy-two thousand, six hundred sixty-six".