556738680 has 32 divisors (see below), whose sum is σ = 1670216400. Its totient is φ = 148463616.

The previous prime is 556738669. The next prime is 556738687. The reversal of 556738680 is 86837655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556738687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319625 + ... + 2319864.

Almost surely, 2^556738680 is an apocalyptic number.

It is an amenable number.

556738680 is an abundant number, since it is smaller than the sum of its proper divisors (1113477720).

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

556738680 is a wasteful number, since it uses less digits than its factorization.

556738680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639503 (or 4639499 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 556738680 is about 23595.3105510396. The cubic root of 556738680 is about 822.6538448314.

The spelling of 556738680 in words is "five hundred fifty-six million, seven hundred thirty-eight thousand, six hundred eighty".