531522005 has 16 divisors (see below), whose sum is σ = 754081920. Its totient is φ = 351903552.

The previous prime is 531521999. The next prime is 531522007. The reversal of 531522005 is 500225135.

It is not a de Polignac number, because 531522005 - 2⁴ = 531521989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531522007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260819 + ... + 262848.

It is an arithmetic number, because the mean of its divisors is an integer number (47130120).

Almost surely, 2^531522005 is an apocalyptic number.

It is an amenable number.

531522005 is a deficient number, since it is larger than the sum of its proper divisors (222559915).

531522005 is a wasteful number, since it uses less digits than its factorization.

531522005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523708.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 531522005 is about 23054.7610050506. The cubic root of 531522005 is about 810.0411527128.

The spelling of 531522005 in words is "five hundred thirty-one million, five hundred twenty-two thousand, five".