55887760878 has 8 divisors (see below), whose sum is σ = 111775521768. Its totient is φ = 18629253624.

The previous prime is 55887760853. The next prime is 55887760931. The reversal of 55887760878 is 87806778855.

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

55887760878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4657313401 + ... + 4657313412.

It is an arithmetic number, because the mean of its divisors is an integer number (13971940221).

Almost surely, 2^55887760878 is an apocalyptic number.

55887760878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55887760878 is a wasteful number, since it uses less digits than its factorization.

55887760878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9314626818.

The product of its (nonzero) digits is 210739200, while the sum is 69.

The spelling of 55887760878 in words is "fifty-five billion, eight hundred eighty-seven million, seven hundred sixty thousand, eight hundred seventy-eight".