522090393 has 16 divisors (see below), whose sum is σ = 785592000. Its totient is φ = 305506880.

The previous prime is 522090377. The next prime is 522090479. The reversal of 522090393 is 393090225.

It is not a de Polignac number, because 522090393 - 2⁴ = 522090377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (522090353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271818 + ... + 273731.

It is an arithmetic number, because the mean of its divisors is an integer number (49099500).

Almost surely, 2^522090393 is an apocalyptic number.

It is an amenable number.

522090393 is a deficient number, since it is larger than the sum of its proper divisors (263501607).

522090393 is a wasteful number, since it uses less digits than its factorization.

522090393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545592.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 522090393 is about 22849.2974290239. The cubic root of 522090393 is about 805.2212619155.

The spelling of 522090393 in words is "five hundred twenty-two million, ninety thousand, three hundred ninety-three".