575701661 has 4 divisors (see below), whose sum is σ = 600732192. Its totient is φ = 550671132.

The previous prime is 575701657. The next prime is 575701663. The reversal of 575701661 is 166107575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 575701661 - 2² = 575701657 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 (575701663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12515231 + ... + 12515276.

It is an arithmetic number, because the mean of its divisors is an integer number (150183048).

Almost surely, 2^575701661 is an apocalyptic number.

It is an amenable number.

575701661 is a deficient number, since it is larger than the sum of its proper divisors (25030531).

575701661 is a wasteful number, since it uses less digits than its factorization.

575701661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030530.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 575701661 is about 23993.7837991426. The cubic root of 575701661 is about 831.8898539199.

The spelling of 575701661 in words is "five hundred seventy-five million, seven hundred one thousand, six hundred sixty-one".