55989263 has 4 divisors (see below), whose sum is σ = 61079208. Its totient is φ = 50899320.

The previous prime is 55989259. The next prime is 55989301. The reversal of 55989263 is 36298955.

55989263 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 55989263 - 2² = 55989259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55989863) 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, 2544956 + ... + 2544977.

It is an arithmetic number, because the mean of its divisors is an integer number (15269802).

Almost surely, 2^55989263 is an apocalyptic number.

55989263 is a deficient number, since it is larger than the sum of its proper divisors (5089945).

55989263 is a wasteful number, since it uses less digits than its factorization.

55989263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089944.

The product of its digits is 583200, while the sum is 47.

The square root of 55989263 is about 7482.5973431690. The cubic root of 55989263 is about 382.5617836320.

It can be divided in two parts, 559892 and 63, that added together give a palindrome (559955).

The spelling of 55989263 in words is "fifty-five million, nine hundred eighty-nine thousand, two hundred sixty-three".