531985456 has 40 divisors (see below), whose sum is σ = 1047990960. Its totient is φ = 261559296.

The previous prime is 531985417. The next prime is 531985459. The reversal of 531985456 is 654589135.

It is not an unprimeable number, because it can be changed into a prime (531985459) 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, 657180 + ... + 657988.

It is an arithmetic number, because the mean of its divisors is an integer number (26199774).

Almost surely, 2^531985456 is an apocalyptic number.

It is an amenable number.

531985456 is a deficient number, since it is larger than the sum of its proper divisors (516005504).

531985456 is a wasteful number, since it uses less digits than its factorization.

531985456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1447 counting only the distinct ones).

The product of its digits is 648000, while the sum is 46.

The square root of 531985456 is about 23064.8099060018. The cubic root of 531985456 is about 810.2765178966.

The spelling of 531985456 in words is "five hundred thirty-one million, nine hundred eighty-five thousand, four hundred fifty-six".