522216799 has 4 divisors (see below), whose sum is σ = 562387336. Its totient is φ = 482046264.

The previous prime is 522216701. The next prime is 522216889. The reversal of 522216799 is 997612225.

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

It is a cyclic number.

It is not a de Polignac number, because 522216799 - 2¹⁵ = 522184031 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 (522216599) 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, 20085249 + ... + 20085274.

It is an arithmetic number, because the mean of its divisors is an integer number (140596834).

Almost surely, 2^522216799 is an apocalyptic number.

522216799 is a deficient number, since it is larger than the sum of its proper divisors (40170537).

522216799 is a wasteful number, since it uses less digits than its factorization.

522216799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40170536.

The product of its digits is 136080, while the sum is 43.

The square root of 522216799 is about 22852.0633422892. The cubic root of 522216799 is about 805.2862420970.

The spelling of 522216799 in words is "five hundred twenty-two million, two hundred sixteen thousand, seven hundred ninety-nine".