575267661 has 6 divisors (see below), whose sum is σ = 830942190. Its totient is φ = 383511768.

The previous prime is 575267633. The next prime is 575267663. The reversal of 575267661 is 166762575.

575267661 is a `hidden beast` number, since 57 + 526 + 76 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 573842025 + 1425636 = 23955^2 + 1194^2 .

It is not a de Polignac number, because 575267661 - 2⁵ = 575267629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575267663) 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, 31959306 + ... + 31959323.

It is an arithmetic number, because the mean of its divisors is an integer number (138490365).

Almost surely, 2^575267661 is an apocalyptic number.

It is an amenable number.

575267661 is a deficient number, since it is larger than the sum of its proper divisors (255674529).

575267661 is a wasteful number, since it uses less digits than its factorization.

575267661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63918635 (or 63918632 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 575267661 is about 23984.7380848739. The cubic root of 575267661 is about 831.6807577948.

The spelling of 575267661 in words is "five hundred seventy-five million, two hundred sixty-seven thousand, six hundred sixty-one".