54559881 has 12 divisors (see below), whose sum is σ = 79622452. Its totient is φ = 35997696.

The previous prime is 54559873. The next prime is 54559891. The reversal of 54559881 is 18895545.

It is a happy number.

54559881 is a `hidden beast` number, since 54 + 5 + 598 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22240656 + 32319225 = 4716^2 + 5685^2 .

It is not a de Polignac number, because 54559881 - 2³ = 54559873 is a prime.

It is a super-2 number, since 2×54559881² = 5953561229468322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54559861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30376 + ... + 32121.

Almost surely, 2^54559881 is an apocalyptic number.

It is an amenable number.

54559881 is a deficient number, since it is larger than the sum of its proper divisors (25062571).

54559881 is a wasteful number, since it uses less digits than its factorization.

54559881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62600 (or 62597 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 54559881 is about 7386.4660697792. The cubic root of 54559881 is about 379.2781332681.

The spelling of 54559881 in words is "fifty-four million, five hundred fifty-nine thousand, eight hundred eighty-one".