522875992381 has 4 divisors (see below), whose sum is σ = 523005133500. Its totient is φ = 522746851264.

The previous prime is 522875992361. The next prime is 522875992409. The reversal of 522875992381 is 183299578225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 382356722500 + 140519269881 = 618350^2 + 374859^2 .

It is a cyclic number.

It is not a de Polignac number, because 522875992381 - 2¹¹ = 522875990333 is a prime.

It is a super-2 number, since 2×522875992381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522875992361) 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, 64564486 + ... + 64572583.

It is an arithmetic number, because the mean of its divisors is an integer number (130751283375).

Almost surely, 2^522875992381 is an apocalyptic number.

It is an amenable number.

522875992381 is a deficient number, since it is larger than the sum of its proper divisors (129141119).

522875992381 is a wasteful number, since it uses less digits than its factorization.

522875992381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129141118.

The product of its digits is 21772800, while the sum is 61.

The spelling of 522875992381 in words is "five hundred twenty-two billion, eight hundred seventy-five million, nine hundred ninety-two thousand, three hundred eighty-one".