55505119 has 4 divisors (see below), whose sum is σ = 58770144. Its totient is φ = 52240096.

The previous prime is 55505081. The next prime is 55505123. The reversal of 55505119 is 91150555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91150555 = 5 ⋅18230111.

It is a cyclic number.

It is not a de Polignac number, because 55505119 - 2⁷ = 55504991 is a prime.

It is a super-2 number, since 2×55505119² = 6161636470408322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1632487 + ... + 1632520.

It is an arithmetic number, because the mean of its divisors is an integer number (14692536).

Almost surely, 2^55505119 is an apocalyptic number.

55505119 is a deficient number, since it is larger than the sum of its proper divisors (3265025).

55505119 is a wasteful number, since it uses less digits than its factorization.

55505119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265024.

The product of its (nonzero) digits is 5625, while the sum is 31.

The square root of 55505119 is about 7450.1757697386. The cubic root of 55505119 is about 381.4559083361.

The spelling of 55505119 in words is "fifty-five million, five hundred five thousand, one hundred nineteen".