55143235 has 8 divisors (see below), whose sum is σ = 75625056. Its totient is φ = 37812480.

The previous prime is 55143227. The next prime is 55143241. The reversal of 55143235 is 53234155.

55143235 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 55143235 - 2³ = 55143227 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 787726 + ... + 787795.

It is an arithmetic number, because the mean of its divisors is an integer number (9453132).

Almost surely, 2^55143235 is an apocalyptic number.

55143235 is a deficient number, since it is larger than the sum of its proper divisors (20481821).

55143235 is a wasteful number, since it uses less digits than its factorization.

55143235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575533.

The product of its digits is 9000, while the sum is 28.

The square root of 55143235 is about 7425.8491096978. The cubic root of 55143235 is about 380.6250907524.

The spelling of 55143235 in words is "fifty-five million, one hundred forty-three thousand, two hundred thirty-five".