556930665 has 48 divisors (see below), whose sum is σ = 981738576. Its totient is φ = 292032000.

The previous prime is 556930639. The next prime is 556930691. The reversal of 556930665 is 566039655.

556930665 is a `hidden beast` number, since 556 + 9 + 30 + 6 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (556930639) and next prime (556930691).

It can be written as a sum of positive squares in 8 ways, for example, as 30503529 + 526427136 = 5523^2 + 22944^2 .

It is not a de Polignac number, because 556930665 - 2⁷ = 556930537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 556930665.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 822307 + ... + 822983.

It is an arithmetic number, because the mean of its divisors is an integer number (20452887).

Almost surely, 2^556930665 is an apocalyptic number.

It is an amenable number.

556930665 is a deficient number, since it is larger than the sum of its proper divisors (424807911).

556930665 is a wasteful number, since it uses less digits than its factorization.

556930665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The square root of 556930665 is about 23599.3784875789. The cubic root of 556930665 is about 822.7483949039.

The spelling of 556930665 in words is "five hundred fifty-six million, nine hundred thirty thousand, six hundred sixty-five".