55862291 has 4 divisors (see below), whose sum is σ = 56079912. Its totient is φ = 55644672.

The previous prime is 55862263. The next prime is 55862329. The reversal of 55862291 is 19226855.

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 55862291 - 2⁶ = 55862227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55862201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108425 + ... + 108938.

It is an arithmetic number, because the mean of its divisors is an integer number (14019978).

Almost surely, 2^55862291 is an apocalyptic number.

55862291 is a deficient number, since it is larger than the sum of its proper divisors (217621).

55862291 is a wasteful number, since it uses less digits than its factorization.

55862291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217620.

The product of its digits is 43200, while the sum is 38.

The square root of 55862291 is about 7474.1080404286. The cubic root of 55862291 is about 382.2723745704.

The spelling of 55862291 in words is "fifty-five million, eight hundred sixty-two thousand, two hundred ninety-one".