55546442800 has 30 divisors (see below), whose sum is σ = 133450329788. Its totient is φ = 22218576960.

The previous prime is 55546442773. The next prime is 55546442839. The reversal of 55546442800 is 824464555.

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 5 ways as a sum of consecutive naturals, for example, 69432654 + ... + 69433453.

Almost surely, 2^55546442800 is an apocalyptic number.

55546442800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55546442800 is an abundant number, since it is smaller than the sum of its proper divisors (77903886988).

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

55546442800 is a wasteful number, since it uses less digits than its factorization.

55546442800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138866125 (or 138866114 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 43.

The spelling of 55546442800 in words is "fifty-five billion, five hundred forty-six million, four hundred forty-two thousand, eight hundred".