55536863 has 4 divisors (see below), whose sum is σ = 55605168. Its totient is φ = 55468560.

The previous prime is 55536857. The next prime is 55536869. The reversal of 55536863 is 36863555.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55536857) and next prime (55536869).

It is a cyclic number.

It is not a de Polignac number, because 55536863 - 2¹⁸ = 55274719 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 55536863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55536869) 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, 32918 + ... + 34563.

It is an arithmetic number, because the mean of its divisors is an integer number (13901292).

Almost surely, 2^55536863 is an apocalyptic number.

55536863 is a deficient number, since it is larger than the sum of its proper divisors (68305).

55536863 is an equidigital number, since it uses as much as digits as its factorization.

55536863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68304.

The product of its digits is 324000, while the sum is 41.

The square root of 55536863 is about 7452.3058847581. The cubic root of 55536863 is about 381.5286141147.

The spelling of 55536863 in words is "fifty-five million, five hundred thirty-six thousand, eight hundred sixty-three".