522564457 has 4 divisors (see below), whose sum is σ = 522948096. Its totient is φ = 522180820.

The previous prime is 522564433. The next prime is 522564463. The reversal of 522564457 is 754465225.

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 522564457 - 2¹¹ = 522562409 is a prime.

It is a super-2 number, since 2×522564457² = 546147223439409698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522574457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189769 + ... + 192502.

It is an arithmetic number, because the mean of its divisors is an integer number (130737024).

Almost surely, 2^522564457 is an apocalyptic number.

It is an amenable number.

522564457 is a deficient number, since it is larger than the sum of its proper divisors (383639).

522564457 is a wasteful number, since it uses less digits than its factorization.

522564457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383638.

The product of its digits is 336000, while the sum is 40.

The square root of 522564457 is about 22859.6687858770. The cubic root of 522564457 is about 805.4649048672.

The spelling of 522564457 in words is "five hundred twenty-two million, five hundred sixty-four thousand, four hundred fifty-seven".