56642212 has 12 divisors (see below), whose sum is σ = 108135216. Its totient is φ = 25746440.

The previous prime is 56642207. The next prime is 56642231. The reversal of 56642212 is 21224665.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643618 + ... + 643705.

It is an arithmetic number, because the mean of its divisors is an integer number (9011268).

Almost surely, 2^56642212 is an apocalyptic number.

It is an amenable number.

56642212 is a deficient number, since it is larger than the sum of its proper divisors (51493004).

56642212 is a wasteful number, since it uses less digits than its factorization.

56642212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287338 (or 1287336 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 56642212 is about 7526.1020455479. The cubic root of 56642212 is about 384.0431899482.

Adding to 56642212 its reverse (21224665), we get a palindrome (77866877).

It can be divided in two parts, 566 and 42212, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 56642212 in words is "fifty-six million, six hundred forty-two thousand, two hundred twelve".