55227299 has 2 divisors, whose sum is σ = 55227300. Its totient is φ = 55227298.

The previous prime is 55227239. The next prime is 55227307. The reversal of 55227299 is 99272255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55227299 - 2⁸ = 55227043 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55227239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27613649 + 27613650.

It is an arithmetic number, because the mean of its divisors is an integer number (27613650).

Almost surely, 2^55227299 is an apocalyptic number.

55227299 is a deficient number, since it is larger than the sum of its proper divisors (1).

55227299 is an equidigital number, since it uses as much as digits as its factorization.

55227299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 55227299 is about 7431.5071822612. The cubic root of 55227299 is about 380.8184092498.

It can be divided in two parts, 5522 and 7299, that added together give a palindrome (12821).

The spelling of 55227299 in words is "fifty-five million, two hundred twenty-seven thousand, two hundred ninety-nine".