522539431 has 2 divisors, whose sum is σ = 522539432. Its totient is φ = 522539430.

The previous prime is 522539399. The next prime is 522539449. The reversal of 522539431 is 134935225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 522539431 - 2⁵ = 522539399 is a prime.

It is a super-2 number, since 2×522539431² = 546094913899607522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522539471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261269715 + 261269716.

It is an arithmetic number, because the mean of its divisors is an integer number (261269716).

Almost surely, 2^522539431 is an apocalyptic number.

522539431 is a deficient number, since it is larger than the sum of its proper divisors (1).

522539431 is an equidigital number, since it uses as much as digits as its factorization.

522539431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 522539431 is about 22859.1213960642. The cubic root of 522539431 is about 805.4520465578.

The spelling of 522539431 in words is "five hundred twenty-two million, five hundred thirty-nine thousand, four hundred thirty-one".