56222891 has 8 divisors (see below), whose sum is σ = 56687904. Its totient is φ = 55760320.

The previous prime is 56222867. The next prime is 56222911. The reversal of 56222891 is 19822265.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56222891 is a prime.

It is a super-2 number, since 2×56222891² = 6322026944795762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56222821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90815 + ... + 91431.

It is an arithmetic number, because the mean of its divisors is an integer number (7085988).

Almost surely, 2^56222891 is an apocalyptic number.

56222891 is a deficient number, since it is larger than the sum of its proper divisors (465013).

56222891 is a wasteful number, since it uses less digits than its factorization.

56222891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221.

The product of its digits is 17280, while the sum is 35.

The square root of 56222891 is about 7498.1925155333. The cubic root of 56222891 is about 383.0931540619.

The spelling of 56222891 in words is "fifty-six million, two hundred twenty-two thousand, eight hundred ninety-one".