556768699 has 4 divisors (see below), whose sum is σ = 556846864. Its totient is φ = 556690536.

The previous prime is 556768679. The next prime is 556768739. The reversal of 556768699 is 996867655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556768699 - 2¹⁵ = 556735931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556768679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27192 + ... + 43045.

It is an arithmetic number, because the mean of its divisors is an integer number (139211716).

Almost surely, 2^556768699 is an apocalyptic number.

556768699 is a deficient number, since it is larger than the sum of its proper divisors (78165).

556768699 is an equidigital number, since it uses as much as digits as its factorization.

556768699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78164.

The product of its digits is 24494400, while the sum is 61.

The square root of 556768699 is about 23595.9466646287. The cubic root of 556768699 is about 822.6686302253.

The spelling of 556768699 in words is "five hundred fifty-six million, seven hundred sixty-eight thousand, six hundred ninety-nine".