56222066 has 4 divisors (see below), whose sum is σ = 84333102. Its totient is φ = 28111032.

The previous prime is 56222063. The next prime is 56222069. The reversal of 56222066 is 66022265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66022265 = 5 ⋅13204453.

It is an interprime number because it is at equal distance from previous prime (56222063) and next prime (56222069).

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 942841 = 7435^2 + 971^2 .

It is not an unprimeable number, because it can be changed into a prime (56222063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14055515 + ... + 14055518.

Almost surely, 2^56222066 is an apocalyptic number.

56222066 is a deficient number, since it is larger than the sum of its proper divisors (28111036).

56222066 is a wasteful number, since it uses less digits than its factorization.

56222066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28111035.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 56222066 is about 7498.1375020734. The cubic root of 56222066 is about 383.0912802498.

The spelling of 56222066 in words is "fifty-six million, two hundred twenty-two thousand, sixty-six".