55551494208 has 112 divisors (see below), whose sum is σ = 168202116224. Its totient is φ = 15850598400.

The previous prime is 55551494179. The next prime is 55551494231. The reversal of 55551494208 is 80249415555.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990108 + ... + 1044708.

Almost surely, 2^55551494208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55551494208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84101058112).

55551494208 is an abundant number, since it is smaller than the sum of its proper divisors (112650622016).

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

55551494208 is a wasteful number, since it uses less digits than its factorization.

55551494208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55380 (or 55370 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 48.

The spelling of 55551494208 in words is "fifty-five billion, five hundred fifty-one million, four hundred ninety-four thousand, two hundred eight".