531612424 has 16 divisors (see below), whose sum is σ = 1139169600. Its totient is φ = 227833872.

The previous prime is 531612413. The next prime is 531612439. The reversal of 531612424 is 424216135.

It is a super-2 number, since 2×531612424² = 565223538702311552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 531612392 and 531612401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4746484 + ... + 4746595.

It is an arithmetic number, because the mean of its divisors is an integer number (71198100).

Almost surely, 2^531612424 is an apocalyptic number.

It is an amenable number.

531612424 is an abundant number, since it is smaller than the sum of its proper divisors (607557176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531612424 is a wasteful number, since it uses less digits than its factorization.

531612424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9493092 (or 9493088 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 531612424 is about 23056.7218832166. The cubic root of 531612424 is about 810.0870830521.

Adding to 531612424 its reverse (424216135), we get a palindrome (955828559).

The spelling of 531612424 in words is "five hundred thirty-one million, six hundred twelve thousand, four hundred twenty-four".