55263643 has 8 divisors (see below), whose sum is σ = 56826176. Its totient is φ = 53713800.

The previous prime is 55263623. The next prime is 55263661. The reversal of 55263643 is 34636255.

55263643 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 a cyclic number.

It is not a de Polignac number, because 55263643 - 2²⁵ = 21709211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55263599 and 55263608.

It is not an unprimeable number, because it can be changed into a prime (55263623) 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 7 ways as a sum of consecutive naturals, for example, 6028 + ... + 12118.

It is an arithmetic number, because the mean of its divisors is an integer number (7103272).

Almost surely, 2^55263643 is an apocalyptic number.

55263643 is a deficient number, since it is larger than the sum of its proper divisors (1562533).

55263643 is a wasteful number, since it uses less digits than its factorization.

55263643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345.

The product of its digits is 64800, while the sum is 34.

The square root of 55263643 is about 7433.9520445050. The cubic root of 55263643 is about 380.9019273021.

Adding to 55263643 its reverse (34636255), we get a palindrome (89899898).

The spelling of 55263643 in words is "fifty-five million, two hundred sixty-three thousand, six hundred forty-three".