55287878255 has 8 divisors (see below), whose sum is σ = 66346986912. Its totient is φ = 44229280608.

The previous prime is 55287878237. The next prime is 55287878279.

55287878255 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55287878255 is a prime.

It is a Duffinian number.

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, 175889 + ... + 376181.

It is an arithmetic number, because the mean of its divisors is an integer number (8293373364).

Almost surely, 2^55287878255 is an apocalyptic number.

55287878255 is a deficient number, since it is larger than the sum of its proper divisors (11059108657).

55287878255 is a wasteful number, since it uses less digits than its factorization.

55287878255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255505.

The product of its digits is 62720000, while the sum is 62.

The spelling of 55287878255 in words is "fifty-five billion, two hundred eighty-seven million, eight hundred seventy-eight thousand, two hundred fifty-five".