522663389 has 8 divisors (see below), whose sum is σ = 524880000. Its totient is φ = 520452352.

The previous prime is 522663373. The next prime is 522663391. The reversal of 522663389 is 983366225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522663389 - 2⁴ = 522663373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522665389) 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 7 ways as a sum of consecutive naturals, for example, 322022 + ... + 323640.

It is an arithmetic number, because the mean of its divisors is an integer number (65610000).

Almost surely, 2^522663389 is an apocalyptic number.

It is an amenable number.

522663389 is a deficient number, since it is larger than the sum of its proper divisors (2216611).

522663389 is a wasteful number, since it uses less digits than its factorization.

522663389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787.

The product of its digits is 466560, while the sum is 44.

The square root of 522663389 is about 22861.8325818382. The cubic root of 522663389 is about 805.5157319149.

It can be divided in two parts, 52266 and 3389, that added together give a palindrome (55655).

The spelling of 522663389 in words is "five hundred twenty-two million, six hundred sixty-three thousand, three hundred eighty-nine".