522826561 has 4 divisors (see below), whose sum is σ = 525304624. Its totient is φ = 520348500.

The previous prime is 522826541. The next prime is 522826567. The reversal of 522826561 is 165628225.

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 522826561 - 2⁷ = 522826433 is a prime.

It is a super-2 number, since 2×522826561² = 546695225774173442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 522826561.

It is not an unprimeable number, because it can be changed into a prime (522826567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1238715 + ... + 1239136.

It is an arithmetic number, because the mean of its divisors is an integer number (131326156).

Almost surely, 2^522826561 is an apocalyptic number.

It is an amenable number.

522826561 is a deficient number, since it is larger than the sum of its proper divisors (2478063).

522826561 is a wasteful number, since it uses less digits than its factorization.

522826561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478062.

The product of its digits is 57600, while the sum is 37.

The square root of 522826561 is about 22865.4009586537. The cubic root of 522826561 is about 805.5995487272.

The spelling of 522826561 in words is "five hundred twenty-two million, eight hundred twenty-six thousand, five hundred sixty-one".