55222339 has 2 divisors, whose sum is σ = 55222340. Its totient is φ = 55222338.

The previous prime is 55222327. The next prime is 55222357. The reversal of 55222339 is 93322255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55222339 - 2¹⁵ = 55189571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55222339.

It is not a weakly prime, because it can be changed into another prime (55222399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27611169 + 27611170.

It is an arithmetic number, because the mean of its divisors is an integer number (27611170).

Almost surely, 2^55222339 is an apocalyptic number.

55222339 is a deficient number, since it is larger than the sum of its proper divisors (1).

55222339 is an equidigital number, since it uses as much as digits as its factorization.

55222339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 31.

The square root of 55222339 is about 7431.1734604973. The cubic root of 55222339 is about 380.8070083913.

The spelling of 55222339 in words is "fifty-five million, two hundred twenty-two thousand, three hundred thirty-nine".