556566673 has 32 divisors (see below), whose sum is σ = 649845504. Its totient is φ = 472614912.

The previous prime is 556566671. The next prime is 556566679. The reversal of 556566673 is 376665655.

It is a cyclic number.

It is not a de Polignac number, because 556566673 - 2¹ = 556566671 is a prime.

It is a super-2 number, since 2×556566673² = 619532922988577858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556566671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 938265 + ... + 938857.

It is an arithmetic number, because the mean of its divisors is an integer number (20307672).

Almost surely, 2^556566673 is an apocalyptic number.

It is an amenable number.

556566673 is a deficient number, since it is larger than the sum of its proper divisors (93278831).

556566673 is a wasteful number, since it uses less digits than its factorization.

556566673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its digits is 3402000, while the sum is 49.

The square root of 556566673 is about 23591.6653290945. The cubic root of 556566673 is about 822.5691151967.

The spelling of 556566673 in words is "five hundred fifty-six million, five hundred sixty-six thousand, six hundred seventy-three".