55119999 has 8 divisors (see below), whose sum is σ = 80174592. Its totient is φ = 33406040.

The previous prime is 55119997. The next prime is 55120003. The reversal of 55119999 is 99991155.

It is a happy number.

55119999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55119999 - 2¹ = 55119997 is a prime.

55119999 is a modest number, since divided by 9999 gives 5511 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55119997) 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 7 ways as a sum of consecutive naturals, for example, 835119 + ... + 835184.

It is an arithmetic number, because the mean of its divisors is an integer number (10021824).

Almost surely, 2^55119999 is an apocalyptic number.

55119999 is a deficient number, since it is larger than the sum of its proper divisors (25054593).

55119999 is a wasteful number, since it uses less digits than its factorization.

55119999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670317.

The product of its digits is 164025, while the sum is 48.

The square root of 55119999 is about 7424.2844099617. The cubic root of 55119999 is about 380.5716212310.

The spelling of 55119999 in words is "fifty-five million, one hundred nineteen thousand, nine hundred ninety-nine".