56222239 has 2 divisors, whose sum is σ = 56222240. Its totient is φ = 56222238.

The previous prime is 56222237. The next prime is 56222249. The reversal of 56222239 is 93222265.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56222239 - 2¹ = 56222237 is a prime.

Together with 56222237, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 56222239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56222233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28111119 + 28111120.

It is an arithmetic number, because the mean of its divisors is an integer number (28111120).

Almost surely, 2^56222239 is an apocalyptic number.

56222239 is a deficient number, since it is larger than the sum of its proper divisors (1).

56222239 is an equidigital number, since it uses as much as digits as its factorization.

56222239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 56222239 is about 7498.1490382627. The cubic root of 56222239 is about 383.0916731840.

It can be divided in two parts, 562 and 22239, that added together give a square (22801 = 151²).

The spelling of 56222239 in words is "fifty-six million, two hundred twenty-two thousand, two hundred thirty-nine".