55853873 has 4 divisors (see below), whose sum is σ = 55878900. Its totient is φ = 55828848.

The previous prime is 55853851. The next prime is 55853887. The reversal of 55853873 is 37835855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37835855 = 5 ⋅7567171.

It can be written as a sum of positive squares in 2 ways, for example, as 45792289 + 10061584 = 6767^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 55853873 - 2⁸ = 55853617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55853803) 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, 8798 + ... + 13751.

It is an arithmetic number, because the mean of its divisors is an integer number (13969725).

Almost surely, 2^55853873 is an apocalyptic number.

It is an amenable number.

55853873 is a deficient number, since it is larger than the sum of its proper divisors (25027).

55853873 is a wasteful number, since it uses less digits than its factorization.

55853873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25026.

The product of its digits is 504000, while the sum is 44.

The square root of 55853873 is about 7473.5448750911. The cubic root of 55853873 is about 382.2531718104.

The spelling of 55853873 in words is "fifty-five million, eight hundred fifty-three thousand, eight hundred seventy-three".