522055404 has 72 divisors (see below), whose sum is σ = 1429234352. Its totient is φ = 159719040.

The previous prime is 522055379. The next prime is 522055409. The reversal of 522055404 is 404550225.

522055404 is a `hidden beast` number, since 52 + 205 + 5 + 404 = 666.

It is a super-3 number, since 3×522055404³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (522055409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81627 + ... + 87789.

Almost surely, 2^522055404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522055404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714617176).

522055404 is an abundant number, since it is smaller than the sum of its proper divisors (907178948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522055404 is a wasteful number, since it uses less digits than its factorization.

522055404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6367 (or 6362 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 522055404 is about 22848.5317690218. The cubic root of 522055404 is about 805.2032736409.

The spelling of 522055404 in words is "five hundred twenty-two million, fifty-five thousand, four hundred four".