56222666 has 4 divisors (see below), whose sum is σ = 84334002. Its totient is φ = 28111332.

The previous prime is 56222659. The next prime is 56222687. The reversal of 56222666 is 66622265.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34869025 + 21353641 = 5905^2 + 4621^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14055665 + ... + 14055668.

Almost surely, 2^56222666 is an apocalyptic number.

56222666 is a deficient number, since it is larger than the sum of its proper divisors (28111336).

56222666 is a wasteful number, since it uses less digits than its factorization.

56222666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28111335.

The product of its digits is 51840, while the sum is 35.

The square root of 56222666 is about 7498.1775119025. The cubic root of 56222666 is about 383.0926430240.

The spelling of 56222666 in words is "fifty-six million, two hundred twenty-two thousand, six hundred sixty-six".