55143259 has 8 divisors (see below), whose sum is σ = 57618432. Its totient is φ = 52674600.

The previous prime is 55143247. The next prime is 55143281. The reversal of 55143259 is 95234155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55143259 - 2⁵ = 55143227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55143289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25432 + ... + 27514.

It is an arithmetic number, because the mean of its divisors is an integer number (7202304).

Almost surely, 2^55143259 is an apocalyptic number.

55143259 is a deficient number, since it is larger than the sum of its proper divisors (2475173).

55143259 is a wasteful number, since it uses less digits than its factorization.

55143259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257.

The product of its digits is 27000, while the sum is 34.

The square root of 55143259 is about 7425.8507256745. The cubic root of 55143259 is about 380.6251459722.

The spelling of 55143259 in words is "fifty-five million, one hundred forty-three thousand, two hundred fifty-nine".