522613913 has 4 divisors (see below), whose sum is σ = 522668160. Its totient is φ = 522559668.

The previous prime is 522613859. The next prime is 522613919. The reversal of 522613913 is 319316225.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 522613913 - 2¹⁴ = 522597529 is a prime.

It is a super-2 number, since 2×522613913² = 546250604122343138, 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 522613913.

It is not an unprimeable number, because it can be changed into a prime (522613919) 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, 8333 + ... + 33386.

It is an arithmetic number, because the mean of its divisors is an integer number (130667040).

Almost surely, 2^522613913 is an apocalyptic number.

It is an amenable number.

522613913 is a deficient number, since it is larger than the sum of its proper divisors (54247).

522613913 is a wasteful number, since it uses less digits than its factorization.

522613913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54246.

The product of its digits is 9720, while the sum is 32.

The square root of 522613913 is about 22860.7504907429. The cubic root of 522613913 is about 805.4903140553.

It can be divided in two parts, 522 and 613913, that multiplied together give a triangular number (320462586 = T₂₅₃₁₆).

The spelling of 522613913 in words is "five hundred twenty-two million, six hundred thirteen thousand, nine hundred thirteen".