522642197 has 12 divisors (see below), whose sum is σ = 656543328. Its totient is φ = 407253000.

The previous prime is 522642191. The next prime is 522642223. The reversal of 522642197 is 791246225.

It is not a de Polignac number, because 522642197 - 2⁸ = 522641941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 522642197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522642191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307679 + ... + 309372.

It is an arithmetic number, because the mean of its divisors is an integer number (54711944).

Almost surely, 2^522642197 is an apocalyptic number.

It is an amenable number.

522642197 is a deficient number, since it is larger than the sum of its proper divisors (133901131).

522642197 is a wasteful number, since it uses less digits than its factorization.

522642197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617080 (or 617069 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 522642197 is about 22861.3690972347. The cubic root of 522642197 is about 805.5048449078.

The spelling of 522642197 in words is "five hundred twenty-two million, six hundred forty-two thousand, one hundred ninety-seven".