55091177 has 2 divisors, whose sum is σ = 55091178. Its totient is φ = 55091176.

The previous prime is 55091171. The next prime is 55091269. The reversal of 55091177 is 77119055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51782416 + 3308761 = 7196^2 + 1819^2 .

It is a cyclic number.

It is not a de Polignac number, because 55091177 - 2²⁰ = 54042601 is a prime.

It is not a weakly prime, because it can be changed into another prime (55091171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27545588 + 27545589.

It is an arithmetic number, because the mean of its divisors is an integer number (27545589).

Almost surely, 2^55091177 is an apocalyptic number.

It is an amenable number.

55091177 is a deficient number, since it is larger than the sum of its proper divisors (1).

55091177 is an equidigital number, since it uses as much as digits as its factorization.

55091177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11025, while the sum is 35.

The square root of 55091177 is about 7422.3430936598. The cubic root of 55091177 is about 380.5052766019.

The spelling of 55091177 in words is "fifty-five million, ninety-one thousand, one hundred seventy-seven".