56556212 has 12 divisors (see below), whose sum is σ = 104795460. Its totient is φ = 26614656.

The previous prime is 56556209. The next prime is 56556233. The reversal of 56556212 is 21265565.

It can be written as a sum of positive squares in 2 ways, for example, as 33477796 + 23078416 = 5786^2 + 4804^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415787 + ... + 415922.

It is an arithmetic number, because the mean of its divisors is an integer number (8732955).

Almost surely, 2^56556212 is an apocalyptic number.

It is an amenable number.

56556212 is a deficient number, since it is larger than the sum of its proper divisors (48239248).

56556212 is a wasteful number, since it uses less digits than its factorization.

56556212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831730 (or 831728 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 56556212 is about 7520.3864262417. The cubic root of 56556212 is about 383.8487269460.

The spelling of 56556212 in words is "fifty-six million, five hundred fifty-six thousand, two hundred twelve".