531865748 has 6 divisors (see below), whose sum is σ = 930765066. Its totient is φ = 265932872.

The previous prime is 531865739. The next prime is 531865751. The reversal of 531865748 is 847568135.

It can be written as a sum of positive squares in only one way, i.e., 445969924 + 85895824 = 21118^2 + 9268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66483215 + ... + 66483222.

It is an arithmetic number, because the mean of its divisors is an integer number (155127511).

Almost surely, 2^531865748 is an apocalyptic number.

It is an amenable number.

531865748 is a deficient number, since it is larger than the sum of its proper divisors (398899318).

531865748 is a wasteful number, since it uses less digits than its factorization.

531865748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132966441 (or 132966439 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 531865748 is about 23062.2147245229. The cubic root of 531865748 is about 810.2157368754.

The spelling of 531865748 in words is "five hundred thirty-one million, eight hundred sixty-five thousand, seven hundred forty-eight".