55799873 has 4 divisors (see below), whose sum is σ = 55825620. Its totient is φ = 55774128.

The previous prime is 55799867. The next prime is 55799879. The reversal of 55799873 is 37899755.

It is a happy number.

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 (55799867) and next prime (55799879).

It can be written as a sum of positive squares in 2 ways, for example, as 29246464 + 26553409 = 5408^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 55799873 - 2⁸ = 55799617 is a prime.

It is a super-2 number, since 2×55799873² = 6227251653632258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55799879) 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, 9290 + ... + 14067.

It is an arithmetic number, because the mean of its divisors is an integer number (13956405).

Almost surely, 2^55799873 is an apocalyptic number.

It is an amenable number.

55799873 is a deficient number, since it is larger than the sum of its proper divisors (25747).

55799873 is a wasteful number, since it uses less digits than its factorization.

55799873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25746.

The product of its digits is 2381400, while the sum is 53.

The square root of 55799873 is about 7469.9312580505. The cubic root of 55799873 is about 382.1299435487.

The spelling of 55799873 in words is "fifty-five million, seven hundred ninety-nine thousand, eight hundred seventy-three".