56122666 has 4 divisors (see below), whose sum is σ = 84184002. Its totient is φ = 28061332.

The previous prime is 56122639. The next prime is 56122667. The reversal of 56122666 is 66622165.

56122666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 43837641 + 12285025 = 6621^2 + 3505^2 .

It is not an unprimeable number, because it can be changed into a prime (56122667) 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 as a sum of consecutive naturals, namely, 14030665 + ... + 14030668.

Almost surely, 2^56122666 is an apocalyptic number.

56122666 is a deficient number, since it is larger than the sum of its proper divisors (28061336).

56122666 is a wasteful number, since it uses less digits than its factorization.

56122666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061335.

The product of its digits is 25920, while the sum is 34.

The square root of 56122666 is about 7491.5062570888. The cubic root of 56122666 is about 382.8653799981.

The spelling of 56122666 in words is "fifty-six million, one hundred twenty-two thousand, six hundred sixty-six".