55355919 has 8 divisors (see below), whose sum is σ = 73864320. Its totient is φ = 36875736.

The previous prime is 55355897. The next prime is 55355933. The reversal of 55355919 is 91955355.

55355919 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 not a de Polignac number, because 55355919 - 2⁵ = 55355887 is a prime.

It is a super-2 number, since 2×55355919² = 6128555536669122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55355939) 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, 1947 + ... + 10700.

It is an arithmetic number, because the mean of its divisors is an integer number (9233040).

Almost surely, 2^55355919 is an apocalyptic number.

55355919 is a deficient number, since it is larger than the sum of its proper divisors (18508401).

55355919 is a wasteful number, since it uses less digits than its factorization.

55355919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14109.

The product of its digits is 151875, while the sum is 42.

The square root of 55355919 is about 7440.1558451420. The cubic root of 55355919 is about 381.1138120043.

The spelling of 55355919 in words is "fifty-five million, three hundred fifty-five thousand, nine hundred nineteen".