522217953 has 12 divisors (see below), whose sum is σ = 759121428. Its totient is φ = 345926880.

The previous prime is 522217939. The next prime is 522217961. The reversal of 522217953 is 359712225.

It can be written as a sum of positive squares in 2 ways, for example, as 181926144 + 340291809 = 13488^2 + 18447^2 .

It is not a de Polignac number, because 522217953 - 2⁴ = 522217937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (522217153) 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, 183378 + ... + 186203.

It is an arithmetic number, because the mean of its divisors is an integer number (63260119).

Almost surely, 2^522217953 is an apocalyptic number.

It is an amenable number.

522217953 is a deficient number, since it is larger than the sum of its proper divisors (236903475).

522217953 is a wasteful number, since it uses less digits than its factorization.

522217953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369744 (or 369741 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 522217953 is about 22852.0885916364. The cubic root of 522217953 is about 805.2868352731.

The spelling of 522217953 in words is "five hundred twenty-two million, two hundred seventeen thousand, nine hundred fifty-three".