55012273 has 2 divisors, whose sum is σ = 55012274. Its totient is φ = 55012272.

The previous prime is 55012261. The next prime is 55012313. The reversal of 55012273 is 37221055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54937744 + 74529 = 7412^2 + 273^2 .

It is a cyclic number.

It is not a de Polignac number, because 55012273 - 2⁵ = 55012241 is a prime.

It is not a weakly prime, because it can be changed into another prime (55012253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27506136 + 27506137.

It is an arithmetic number, because the mean of its divisors is an integer number (27506137).

Almost surely, 2^55012273 is an apocalyptic number.

It is an amenable number.

55012273 is a deficient number, since it is larger than the sum of its proper divisors (1).

55012273 is an equidigital number, since it uses as much as digits as its factorization.

55012273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 55012273 is about 7417.0258864318. The cubic root of 55012273 is about 380.3235310242.

The spelling of 55012273 in words is "fifty-five million, twelve thousand, two hundred seventy-three".