522749699 has 4 divisors (see below), whose sum is σ = 522924864. Its totient is φ = 522574536.

The previous prime is 522749693. The next prime is 522749701. The reversal of 522749699 is 996947225.

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 522749699 - 2²⁰ = 521701123 is a prime.

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 522749699.

It is not an unprimeable number, because it can be changed into a prime (522749693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83027 + ... + 89100.

It is an arithmetic number, because the mean of its divisors is an integer number (130731216).

Almost surely, 2^522749699 is an apocalyptic number.

522749699 is a deficient number, since it is larger than the sum of its proper divisors (175165).

522749699 is a wasteful number, since it uses less digits than its factorization.

522749699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175164.

The product of its digits is 2449440, while the sum is 53.

The square root of 522749699 is about 22863.7201478675. The cubic root of 522749699 is about 805.5600690783.

The spelling of 522749699 in words is "five hundred twenty-two million, seven hundred forty-nine thousand, six hundred ninety-nine".