55383863 has 4 divisors (see below), whose sum is σ = 55490688. Its totient is φ = 55277040.

The previous prime is 55383833. The next prime is 55383869. The reversal of 55383863 is 36838355.

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 55383863 - 2¹⁴ = 55367479 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 55383863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55383869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52631 + ... + 53672.

It is an arithmetic number, because the mean of its divisors is an integer number (13872672).

Almost surely, 2^55383863 is an apocalyptic number.

55383863 is a deficient number, since it is larger than the sum of its proper divisors (106825).

55383863 is a wasteful number, since it uses less digits than its factorization.

55383863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106824.

The product of its digits is 259200, while the sum is 41.

The square root of 55383863 is about 7442.0335258584. The cubic root of 55383863 is about 381.1779307292.

The spelling of 55383863 in words is "fifty-five million, three hundred eighty-three thousand, eight hundred sixty-three".