55119321 has 12 divisors (see below), whose sum is σ = 84300372. Its totient is φ = 34584576.

The previous prime is 55119313. The next prime is 55119331. The reversal of 55119321 is 12391155.

55119321 is a `hidden beast` number, since 551 + 1 + 93 + 21 = 666.

55119321 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 2 ways, for example, as 48149721 + 6969600 = 6939^2 + 2640^2 .

It is not a de Polignac number, because 55119321 - 2³ = 55119313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55119301) 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 11 ways as a sum of consecutive naturals, for example, 179976 + ... + 180281.

It is an arithmetic number, because the mean of its divisors is an integer number (7025031).

Almost surely, 2^55119321 is an apocalyptic number.

55119321 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

55119321 is a deficient number, since it is larger than the sum of its proper divisors (29181051).

55119321 is a wasteful number, since it uses less digits than its factorization.

55119321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360280 (or 360277 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 55119321 is about 7424.2387488550. The cubic root of 55119321 is about 380.5700608257.

The spelling of 55119321 in words is "fifty-five million, one hundred nineteen thousand, three hundred twenty-one".