556699212 has 18 divisors (see below), whose sum is σ = 1407211988. Its totient is φ = 185566392.

The previous prime is 556699193. The next prime is 556699217. The reversal of 556699212 is 212996655.

It is a happy number.

556699212 is a `hidden beast` number, since 556 + 6 + 9 + 92 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (556699217) 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 5 ways as a sum of consecutive naturals, for example, 7731898 + ... + 7731969.

Almost surely, 2^556699212 is an apocalyptic number.

It is an amenable number.

556699212 is an abundant number, since it is smaller than the sum of its proper divisors (850512776).

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

556699212 is a wasteful number, since it uses less digits than its factorization.

556699212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15463877 (or 15463872 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 556699212 is about 23594.4741835880. The cubic root of 556699212 is about 822.6344046701.

The spelling of 556699212 in words is "five hundred fifty-six million, six hundred ninety-nine thousand, two hundred twelve".