531540322 has 32 divisors (see below), whose sum is σ = 841420800. Its totient is φ = 251499600.

The previous prime is 531540319. The next prime is 531540323. The reversal of 531540322 is 223045135.

It is a super-2 number, since 2×531540322² = 565070227823727368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531540323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210579 + ... + 1211017.

It is an arithmetic number, because the mean of its divisors is an integer number (26294400).

Almost surely, 2^531540322 is an apocalyptic number.

531540322 is a deficient number, since it is larger than the sum of its proper divisors (309880478).

531540322 is a wasteful number, since it uses less digits than its factorization.

531540322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 531540322 is about 23055.1582514629. The cubic root of 531540322 is about 810.0504576605.

Adding to 531540322 its reverse (223045135), we get a palindrome (754585457).

The spelling of 531540322 in words is "five hundred thirty-one million, five hundred forty thousand, three hundred twenty-two".