507320656 has 10 divisors (see below), whose sum is σ = 982933802. Its totient is φ = 253660320.

The previous prime is 507320641. The next prime is 507320659. The reversal of 507320656 is 656023705.

It can be written as a sum of positive squares in only one way, i.e., 463971600 + 43349056 = 21540^2 + 6584^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507320659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15853755 + ... + 15853786.

Almost surely, 2^507320656 is an apocalyptic number.

It is an amenable number.

507320656 is a deficient number, since it is larger than the sum of its proper divisors (475613146).

507320656 is a wasteful number, since it uses less digits than its factorization.

507320656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31707549 (or 31707543 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 507320656 is about 22523.7797893693. The cubic root of 507320656 is about 797.5553790614. Note that the first 3 decimals are identical.

The spelling of 507320656 in words is "five hundred seven million, three hundred twenty thousand, six hundred fifty-six".