55234891 has 4 divisors (see below), whose sum is σ = 57636432. Its totient is φ = 52833352.

The previous prime is 55234877. The next prime is 55234897. The reversal of 55234891 is 19843255.

55234891 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 55234891 - 2⁵ = 55234859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55234891.

It is not an unprimeable number, because it can be changed into a prime (55234897) 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, 1200736 + ... + 1200781.

It is an arithmetic number, because the mean of its divisors is an integer number (14409108).

Almost surely, 2^55234891 is an apocalyptic number.

55234891 is a deficient number, since it is larger than the sum of its proper divisors (2401541).

55234891 is a wasteful number, since it uses less digits than its factorization.

55234891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401540.

The product of its digits is 43200, while the sum is 37.

The square root of 55234891 is about 7432.0179628416. The cubic root of 55234891 is about 380.8358585967.

The spelling of 55234891 in words is "fifty-five million, two hundred thirty-four thousand, eight hundred ninety-one".