531522013 has 8 divisors (see below), whose sum is σ = 592179840. Its totient is φ = 472920480.

The previous prime is 531522007. The next prime is 531522023. The reversal of 531522013 is 310225135.

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 531522013 - 2⁵ = 531521981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531522023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513528 + ... + 514561.

It is an arithmetic number, because the mean of its divisors is an integer number (74022480).

Almost surely, 2^531522013 is an apocalyptic number.

It is an amenable number.

531522013 is a deficient number, since it is larger than the sum of its proper divisors (60657827).

531522013 is a wasteful number, since it uses less digits than its factorization.

531522013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028147.

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

The square root of 531522013 is about 23054.7611785505. The cubic root of 531522013 is about 810.0411567768.

Adding to 531522013 its reverse (310225135), we get a palindrome (841747148).

The spelling of 531522013 in words is "five hundred thirty-one million, five hundred twenty-two thousand, thirteen".