55805873 has 16 divisors (see below), whose sum is σ = 59533056. Its totient is φ = 52241280.

The previous prime is 55805861. The next prime is 55805887. The reversal of 55805873 is 37850855.

It is a cyclic number.

It is not a de Polignac number, because 55805873 - 2⁴ = 55805857 is a prime.

It is a super-2 number, since 2×55805873² = 6228590922584258, which contains 22 as substring.

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 55805873.

It is not an unprimeable number, because it can be changed into a prime (55805173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106853 + ... + 107373.

It is an arithmetic number, because the mean of its divisors is an integer number (3720816).

Almost surely, 2^55805873 is an apocalyptic number.

55805873 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55805873 is a deficient number, since it is larger than the sum of its proper divisors (3727183).

55805873 is a wasteful number, since it uses less digits than its factorization.

55805873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 55805873 is about 7470.3328573766. The cubic root of 55805873 is about 382.1436395028.

The spelling of 55805873 in words is "fifty-five million, eight hundred five thousand, eight hundred seventy-three".