522397918441 has 27 divisors (see below), whose sum is σ = 615948258429. Its totient is φ = 441763417368.

The previous prime is 522397918439. The next prime is 522397918487. The reversal of 522397918441 is 144819793225.

The square root of 522397918441 is 722771.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 522397918441 - 2¹ = 522397918439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (522397918421) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 399691710 + ... + 399693016.

Almost surely, 2^522397918441 is an apocalyptic number.

522397918441 is the 722771-st square number.

522397918441 is the 361386-th centered octagonal number.

It is an amenable number.

522397918441 is a deficient number, since it is larger than the sum of its proper divisors (93550339988).

522397918441 is an frugal number, since it uses more digits than its factorization.

522397918441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786 (or 1393 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The spelling of 522397918441 in words is "five hundred twenty-two billion, three hundred ninety-seven million, nine hundred eighteen thousand, four hundred forty-one".