55190005 has 16 divisors (see below), whose sum is σ = 71495424. Its totient is φ = 40656960.

The previous prime is 55189999. The next prime is 55190021. The reversal of 55190005 is 50009155.

55190005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55190005 - 2³ = 55189997 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36372 + ... + 37858.

It is an arithmetic number, because the mean of its divisors is an integer number (4468464).

Almost surely, 2^55190005 is an apocalyptic number.

It is an amenable number.

55190005 is a deficient number, since it is larger than the sum of its proper divisors (16305419).

55190005 is a wasteful number, since it uses less digits than its factorization.

55190005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 55190005 is about 7428.9975770625. The cubic root of 55190005 is about 380.7326700106.

The spelling of 55190005 in words is "fifty-five million, one hundred ninety thousand, five".