54855173 has 2 divisors, whose sum is σ = 54855174. Its totient is φ = 54855172.

The previous prime is 54855169. The next prime is 54855179. The reversal of 54855173 is 37155845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48469444 + 6385729 = 6962^2 + 2527^2 .

It is a cyclic number.

It is not a de Polignac number, because 54855173 - 2² = 54855169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54855179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27427586 + 27427587.

It is an arithmetic number, because the mean of its divisors is an integer number (27427587).

Almost surely, 2^54855173 is an apocalyptic number.

It is an amenable number.

54855173 is a deficient number, since it is larger than the sum of its proper divisors (1).

54855173 is an equidigital number, since it uses as much as digits as its factorization.

54855173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84000, while the sum is 38.

The square root of 54855173 is about 7406.4278164308. The cubic root of 54855173 is about 379.9611525384.

The spelling of 54855173 in words is "fifty-four million, eight hundred fifty-five thousand, one hundred seventy-three".