55678778284 has 12 divisors (see below), whose sum is σ = 103169501064. Its totient is φ = 26201777984.

The previous prime is 55678778249. The next prime is 55678778293. The reversal of 55678778284 is 48287787655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409402714 + ... + 409402849.

It is an arithmetic number, because the mean of its divisors is an integer number (8597458422).

Almost surely, 2^55678778284 is an apocalyptic number.

It is an amenable number.

55678778284 is a deficient number, since it is larger than the sum of its proper divisors (47490722780).

55678778284 is a wasteful number, since it uses less digits than its factorization.

55678778284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818805584 (or 818805582 counting only the distinct ones).

The product of its digits is 210739200, while the sum is 67.

The spelling of 55678778284 in words is "fifty-five billion, six hundred seventy-eight million, seven hundred seventy-eight thousand, two hundred eighty-four".