55108867 has 4 divisors (see below), whose sum is σ = 60118776. Its totient is φ = 50098960.

The previous prime is 55108861. The next prime is 55108931. The reversal of 55108867 is 76880155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55108867 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55108861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2504938 + ... + 2504959.

It is an arithmetic number, because the mean of its divisors is an integer number (15029694).

Almost surely, 2^55108867 is an apocalyptic number.

55108867 is a deficient number, since it is larger than the sum of its proper divisors (5009909).

55108867 is a wasteful number, since it uses less digits than its factorization.

55108867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009908.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 55108867 is about 7423.5346702228. The cubic root of 55108867 is about 380.5459995051.

It can be divided in two parts, 551088 and 67, that added together give a palindrome (551155).

The spelling of 55108867 in words is "fifty-five million, one hundred eight thousand, eight hundred sixty-seven".