55871833 has 4 divisors (see below), whose sum is σ = 56366388. Its totient is φ = 55377280.

The previous prime is 55871831. The next prime is 55871873. The reversal of 55871833 is 33817855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17530969 + 38340864 = 4187^2 + 6192^2 .

It is a cyclic number.

It is not a de Polignac number, because 55871833 - 2¹ = 55871831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55871831) 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, 247108 + ... + 247333.

It is an arithmetic number, because the mean of its divisors is an integer number (14091597).

Almost surely, 2^55871833 is an apocalyptic number.

It is an amenable number.

55871833 is a deficient number, since it is larger than the sum of its proper divisors (494555).

55871833 is a wasteful number, since it uses less digits than its factorization.

55871833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494554.

The product of its digits is 100800, while the sum is 40.

The square root of 55871833 is about 7474.7463502115. The cubic root of 55871833 is about 382.2941390157.

The spelling of 55871833 in words is "fifty-five million, eight hundred seventy-one thousand, eight hundred thirty-three".