522008431 has 8 divisors (see below), whose sum is σ = 597246080. Its totient is φ = 446937048.

The previous prime is 522008423. The next prime is 522008447. The reversal of 522008431 is 134800225.

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 522008431 - 2³ = 522008423 is a prime.

It is a super-4 number, since 4×522008431⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522008396 and 522008405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522008471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34761 + ... + 47458.

It is an arithmetic number, because the mean of its divisors is an integer number (74655760).

Almost surely, 2^522008431 is an apocalyptic number.

522008431 is a deficient number, since it is larger than the sum of its proper divisors (75237649).

522008431 is an equidigital number, since it uses as much as digits as its factorization.

522008431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83133.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 522008431 is about 22847.5038242693. The cubic root of 522008431 is about 805.1791229808.

Adding to 522008431 its reverse (134800225), we get a palindrome (656808656).

The spelling of 522008431 in words is "five hundred twenty-two million, eight thousand, four hundred thirty-one".