108555885 has 24 divisors (see below), whose sum is σ = 188468280. Its totient is φ = 57802752.

The previous prime is 108555877. The next prime is 108555899. The reversal of 108555885 is 588555801.

It is a happy number.

108555885 is a `hidden beast` number, since 10 + 8 + 5 + 558 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 38900169 + 69655716 = 6237^2 + 8346^2 .

It is not a de Polignac number, because 108555885 - 2³ = 108555877 is a prime.

It is a super-3 number, since 3×108555885³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 108555885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33037 + ... + 36173.

It is an arithmetic number, because the mean of its divisors is an integer number (7852845).

Almost surely, 2^108555885 is an apocalyptic number.

108555885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108555885 is a deficient number, since it is larger than the sum of its proper divisors (79912395).

108555885 is a wasteful number, since it uses less digits than its factorization.

108555885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3914 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 45.

The square root of 108555885 is about 10419.0155485055. The cubic root of 108555885 is about 477.0359663293.

The spelling of 108555885 in words is "one hundred eight million, five hundred fifty-five thousand, eight hundred eighty-five".