531122530 has 64 divisors (see below), whose sum is σ = 1016064000. Its totient is φ = 199600128.

The previous prime is 531122507. The next prime is 531122573. The reversal of 531122530 is 35221135.

It is a super-2 number, since 2×531122530² = 564182283747201800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2222151 + ... + 2222389.

It is an arithmetic number, because the mean of its divisors is an integer number (15876000).

Almost surely, 2^531122530 is an apocalyptic number.

531122530 is a deficient number, since it is larger than the sum of its proper divisors (484941470).

531122530 is a wasteful number, since it uses less digits than its factorization.

531122530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 531122530 is about 23046.0957647928. The cubic root of 531122530 is about 809.8381681469.

Adding to 531122530 its reverse (35221135), we get a palindrome (566343665).

The spelling of 531122530 in words is "five hundred thirty-one million, one hundred twenty-two thousand, five hundred thirty".