531613516 has 24 divisors (see below), whose sum is σ = 1064032256. Its totient is φ = 227661840.

The previous prime is 531613507. The next prime is 531613517. The reversal of 531613516 is 615316135.

It is a super-2 number, since 2×531613516² = 565225860787764512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531613517) 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, 34735 + ... + 47641.

Almost surely, 2^531613516 is an apocalyptic number.

It is an amenable number.

531613516 is an abundant number, since it is smaller than the sum of its proper divisors (532418740).

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

531613516 is a wasteful number, since it uses less digits than its factorization.

531613516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14389 (or 14387 counting only the distinct ones).

The product of its digits is 8100, while the sum is 31.

The square root of 531613516 is about 23056.7455639342. The cubic root of 531613516 is about 810.0876377260.

The spelling of 531613516 in words is "five hundred thirty-one million, six hundred thirteen thousand, five hundred sixteen".