55418263 has 4 divisors (see below), whose sum is σ = 56119840. Its totient is φ = 54716688.

The previous prime is 55418243. The next prime is 55418291. The reversal of 55418263 is 36281455.

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 55418263 - 2⁹ = 55417751 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 (55418203) 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, 350670 + ... + 350827.

It is an arithmetic number, because the mean of its divisors is an integer number (14029960).

Almost surely, 2^55418263 is an apocalyptic number.

55418263 is a deficient number, since it is larger than the sum of its proper divisors (701577).

55418263 is an equidigital number, since it uses as much as digits as its factorization.

55418263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701576.

The product of its digits is 28800, while the sum is 34.

The square root of 55418263 is about 7444.3443633405. The cubic root of 55418263 is about 381.2568334169.

The spelling of 55418263 in words is "fifty-five million, four hundred eighteen thousand, two hundred sixty-three".