531116256 has 96 divisors (see below), whose sum is σ = 1525620096. Its totient is φ = 160448000.

The previous prime is 531116249. The next prime is 531116269. The reversal of 531116256 is 652611135.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486271 + ... + 487361.

It is an arithmetic number, because the mean of its divisors is an integer number (15891876).

Almost surely, 2^531116256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531116256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762810048).

531116256 is an abundant number, since it is smaller than the sum of its proper divisors (994503840).

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

531116256 is a wasteful number, since it uses less digits than its factorization.

531116256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576 (or 1568 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 531116256 is about 23045.9596458902. The cubic root of 531116256 is about 809.8349793381.

The spelling of 531116256 in words is "five hundred thirty-one million, one hundred sixteen thousand, two hundred fifty-six".