575474661 has 6 divisors (see below), whose sum is σ = 831241190. Its totient is φ = 383649768.

The previous prime is 575474629. The next prime is 575474663. The reversal of 575474661 is 166474575.

575474661 is a `hidden beast` number, since 5 + 7 + 547 + 46 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 492573636 + 82901025 = 22194^2 + 9105^2 .

It is not a de Polignac number, because 575474661 - 2⁵ = 575474629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575474663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31970806 + ... + 31970823.

Almost surely, 2^575474661 is an apocalyptic number.

It is an amenable number.

575474661 is a deficient number, since it is larger than the sum of its proper divisors (255766529).

575474661 is a wasteful number, since it uses less digits than its factorization.

575474661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63941635 (or 63941632 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 575474661 is about 23989.0529408728. The cubic root of 575474661 is about 831.7805010873.

The spelling of 575474661 in words is "five hundred seventy-five million, four hundred seventy-four thousand, six hundred sixty-one".