557116786 has 8 divisors (see below), whose sum is σ = 835845804. Its totient is φ = 278501520.

The previous prime is 557116759. The next prime is 557116789. The reversal of 557116786 is 687611755.

557116786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 537358761 + 19758025 = 23181^2 + 4445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×557116786² = 620758226485939592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557116789) 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, 14905 + ... + 36556.

Almost surely, 2^557116786 is an apocalyptic number.

557116786 is a deficient number, since it is larger than the sum of its proper divisors (278729018).

557116786 is a wasteful number, since it uses less digits than its factorization.

557116786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56876.

The product of its digits is 352800, while the sum is 46.

The square root of 557116786 is about 23603.3215035511. The cubic root of 557116786 is about 822.8400362927.

The spelling of 557116786 in words is "five hundred fifty-seven million, one hundred sixteen thousand, seven hundred eighty-six".