531484656 has 20 divisors (see below), whose sum is σ = 1373002152. Its totient is φ = 177161536.

The previous prime is 531484649. The next prime is 531484697. The reversal of 531484656 is 656484135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5536251 + ... + 5536346.

Almost surely, 2^531484656 is an apocalyptic number.

It is an amenable number.

531484656 is an abundant number, since it is smaller than the sum of its proper divisors (841517496).

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

531484656 is a wasteful number, since it uses less digits than its factorization.

531484656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072608 (or 11072602 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 531484656 is about 23053.9509845926. The cubic root of 531484656 is about 810.0221789385.

The spelling of 531484656 in words is "five hundred thirty-one million, four hundred eighty-four thousand, six hundred fifty-six".