55522273 has 2 divisors, whose sum is σ = 55522274. Its totient is φ = 55522272.

The previous prime is 55522249. The next prime is 55522277. The reversal of 55522273 is 37222555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50580544 + 4941729 = 7112^2 + 2223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55522273 is a prime.

It is not a weakly prime, because it can be changed into another prime (55522277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27761136 + 27761137.

It is an arithmetic number, because the mean of its divisors is an integer number (27761137).

Almost surely, 2^55522273 is an apocalyptic number.

It is an amenable number.

55522273 is a deficient number, since it is larger than the sum of its proper divisors (1).

55522273 is an equidigital number, since it uses as much as digits as its factorization.

55522273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 31.

The square root of 55522273 is about 7451.3269288094. The cubic root of 55522273 is about 381.4952009322.

The spelling of 55522273 in words is "fifty-five million, five hundred twenty-two thousand, two hundred seventy-three".