55259886 has 16 divisors (see below), whose sum is σ = 120567168. Its totient is φ = 16745400.

The previous prime is 55259873. The next prime is 55259917. The reversal of 55259886 is 68895255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418570 + ... + 418701.

It is an arithmetic number, because the mean of its divisors is an integer number (7535448).

Almost surely, 2^55259886 is an apocalyptic number.

55259886 is an abundant number, since it is smaller than the sum of its proper divisors (65307282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55259886 is a wasteful number, since it uses less digits than its factorization.

55259886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837287.

The product of its digits is 864000, while the sum is 48.

The square root of 55259886 is about 7433.6993482384. The cubic root of 55259886 is about 380.8932954609.

The spelling of 55259886 in words is "fifty-five million, two hundred fifty-nine thousand, eight hundred eighty-six".