55287108 has 36 divisors (see below), whose sum is σ = 144575340. Its totient is φ = 17793216.

The previous prime is 55287107. The next prime is 55287119. The reversal of 55287108 is 80178255.

55287108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10771524 + 44515584 = 3282^2 + 6672^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×55287108² = 6113328622007328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55287103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25435 + ... + 27522.

Almost surely, 2^55287108 is an apocalyptic number.

55287108 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

55287108 is an abundant number, since it is smaller than the sum of its proper divisors (89288232).

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

55287108 is a wasteful number, since it uses less digits than its factorization.

55287108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52996 (or 52991 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 55287108 is about 7435.5301088759. The cubic root of 55287108 is about 380.9558301245.

The spelling of 55287108 in words is "fifty-five million, two hundred eighty-seven thousand, one hundred eight".