55190939 has 8 divisors (see below), whose sum is σ = 56945280. Its totient is φ = 53450496.

The previous prime is 55190903. The next prime is 55190957. The reversal of 55190939 is 93909155.

55190939 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 55190939 - 2²⁴ = 38413723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55190896 and 55190905.

It is not an unprimeable number, because it can be changed into a prime (55190539) 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, 4907 + ... + 11595.

It is an arithmetic number, because the mean of its divisors is an integer number (7118160).

Almost surely, 2^55190939 is an apocalyptic number.

55190939 is a deficient number, since it is larger than the sum of its proper divisors (1754341).

55190939 is a wasteful number, since it uses less digits than its factorization.

55190939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 55190939 is about 7429.0604385750. The cubic root of 55190939 is about 380.7348177565.

The spelling of 55190939 in words is "fifty-five million, one hundred ninety thousand, nine hundred thirty-nine".