531516255 has 16 divisors (see below), whose sum is σ = 853150560. Its totient is φ = 282567168.

The previous prime is 531516247. The next prime is 531516257. The reversal of 531516255 is 552615135.

It is not a de Polignac number, because 531516255 - 2³ = 531516247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531516257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51910 + ... + 61299.

It is an arithmetic number, because the mean of its divisors is an integer number (53321910).

Almost surely, 2^531516255 is an apocalyptic number.

531516255 is a deficient number, since it is larger than the sum of its proper divisors (321634305).

531516255 is a wasteful number, since it uses less digits than its factorization.

531516255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113530.

The product of its digits is 22500, while the sum is 33.

The square root of 531516255 is about 23054.6363016205. The cubic root of 531516255 is about 810.0382316964.

The spelling of 531516255 in words is "five hundred thirty-one million, five hundred sixteen thousand, two hundred fifty-five".