522732661 has 8 divisors (see below), whose sum is σ = 595047744. Its totient is φ = 454549920.

The previous prime is 522732653. The next prime is 522732667. The reversal of 522732661 is 166237225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 522732661 - 2³ = 522732653 is a prime.

It is a super-2 number, since 2×522732661² = 546498869752281842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522732667) 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, 1032816 + ... + 1033321.

It is an arithmetic number, because the mean of its divisors is an integer number (74380968).

Almost surely, 2^522732661 is an apocalyptic number.

It is an amenable number.

522732661 is a deficient number, since it is larger than the sum of its proper divisors (72315083).

522732661 is a wasteful number, since it uses less digits than its factorization.

522732661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066171.

The product of its digits is 30240, while the sum is 34.

The square root of 522732661 is about 22863.3475457991. The cubic root of 522732661 is about 805.5513171003.

Adding to 522732661 its reverse (166237225), we get a palindrome (688969886).

The spelling of 522732661 in words is "five hundred twenty-two million, seven hundred thirty-two thousand, six hundred sixty-one".