55273889 has 6 divisors (see below), whose sum is σ = 60755730. Its totient is φ = 50248880.

The previous prime is 55273879. The next prime is 55273903. The reversal of 55273889 is 98837255.

55273889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 40704400 + 14569489 = 6380^2 + 3817^2 .

It is not a de Polignac number, because 55273889 - 2¹⁶ = 55208353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55273879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228284 + ... + 228525.

It is an arithmetic number, because the mean of its divisors is an integer number (10125955).

Almost surely, 2^55273889 is an apocalyptic number.

It is an amenable number.

55273889 is a deficient number, since it is larger than the sum of its proper divisors (5481841).

55273889 is a wasteful number, since it uses less digits than its factorization.

55273889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456831 (or 456820 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 55273889 is about 7434.6411480313. The cubic root of 55273889 is about 380.9254658636.

The spelling of 55273889 in words is "fifty-five million, two hundred seventy-three thousand, eight hundred eighty-nine".