522541993 has 4 divisors (see below), whose sum is σ = 526002688. Its totient is φ = 519081300.

The previous prime is 522541973. The next prime is 522541997. The reversal of 522541993 is 399145225.

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 a de Polignac number, because none of the positive numbers 2^k-522541993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522541997) 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, 1730121 + ... + 1730422.

It is an arithmetic number, because the mean of its divisors is an integer number (131500672).

Almost surely, 2^522541993 is an apocalyptic number.

It is an amenable number.

522541993 is a deficient number, since it is larger than the sum of its proper divisors (3460695).

522541993 is a wasteful number, since it uses less digits than its factorization.

522541993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460694.

The product of its digits is 97200, while the sum is 40.

The square root of 522541993 is about 22859.1774348947. The cubic root of 522541993 is about 805.4533629272.

The spelling of 522541993 in words is "five hundred twenty-two million, five hundred forty-one thousand, nine hundred ninety-three".