55910859 has 4 divisors (see below), whose sum is σ = 74547816. Its totient is φ = 37273904.

The previous prime is 55910849. The next prime is 55910893. The reversal of 55910859 is 95801955.

It is a happy number.

55910859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55910859 - 2⁷ = 55910731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55910859.

It is not an unprimeable number, because it can be changed into a prime (55910849) 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 3 ways as a sum of consecutive naturals, for example, 9318474 + ... + 9318479.

It is an arithmetic number, because the mean of its divisors is an integer number (18636954).

Almost surely, 2^55910859 is an apocalyptic number.

55910859 is a deficient number, since it is larger than the sum of its proper divisors (18636957).

55910859 is a wasteful number, since it uses less digits than its factorization.

55910859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18636956.

The product of its (nonzero) digits is 81000, while the sum is 42.

The square root of 55910859 is about 7477.3564178792. The cubic root of 55910859 is about 382.3831280341.

The spelling of 55910859 in words is "fifty-five million, nine hundred ten thousand, eight hundred fifty-nine".