531455056 has 40 divisors (see below), whose sum is σ = 1125151200. Its totient is φ = 241173120.

The previous prime is 531455051. The next prime is 531455081. The reversal of 531455056 is 650554135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531455051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122655 + ... + 126913.

It is an arithmetic number, because the mean of its divisors is an integer number (28128780).

Almost surely, 2^531455056 is an apocalyptic number.

It is an amenable number.

531455056 is an abundant number, since it is smaller than the sum of its proper divisors (593696144).

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

531455056 is a wasteful number, since it uses less digits than its factorization.

531455056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987 (or 4981 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 531455056 is about 23053.3090032646. The cubic root of 531455056 is about 810.0071411249.

The spelling of 531455056 in words is "five hundred thirty-one million, four hundred fifty-five thousand, fifty-six".