522490863 has 4 divisors (see below), whose sum is σ = 696654488. Its totient is φ = 348327240.

The previous prime is 522490849. The next prime is 522490889. The reversal of 522490863 is 368094225.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 522490863 - 2⁴ = 522490847 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 (522490763) 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, 87081808 + ... + 87081813.

It is an arithmetic number, because the mean of its divisors is an integer number (174163622).

Almost surely, 2^522490863 is an apocalyptic number.

522490863 is a deficient number, since it is larger than the sum of its proper divisors (174163625).

522490863 is a wasteful number, since it uses less digits than its factorization.

522490863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174163624.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 522490863 is about 22858.0590383348. The cubic root of 522490863 is about 805.4270912436.

The spelling of 522490863 in words is "five hundred twenty-two million, four hundred ninety thousand, eight hundred sixty-three".