55119955 has 16 divisors (see below), whose sum is σ = 73695744. Its totient is φ = 39232480.

The previous prime is 55119929. The next prime is 55119971. The reversal of 55119955 is 55991155.

It is not a de Polignac number, because 55119955 - 2⁹ = 55119443 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8077 + ... + 13246.

It is an arithmetic number, because the mean of its divisors is an integer number (4605984).

Almost surely, 2^55119955 is an apocalyptic number.

55119955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55119955 is a deficient number, since it is larger than the sum of its proper divisors (18575789).

55119955 is a wasteful number, since it uses less digits than its factorization.

55119955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21386.

The product of its digits is 50625, while the sum is 40.

The square root of 55119955 is about 7424.2814467125. The cubic root of 55119955 is about 380.5715199662.

The spelling of 55119955 in words is "fifty-five million, one hundred nineteen thousand, nine hundred fifty-five".