55182798720 has 640 divisors, whose sum is σ = 230775652800. Its totient is φ = 12302254080.

The previous prime is 55182798703. The next prime is 55182798731. The reversal of 55182798720 is 2789728155.

55182798720 is a `hidden beast` number, since 5 + 518 + 27 + 9 + 87 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14876226 + ... + 14879934.

Almost surely, 2^55182798720 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 55182798720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115387826400).

55182798720 is an abundant number, since it is smaller than the sum of its proper divisors (175592854080).

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

55182798720 is a wasteful number, since it uses less digits than its factorization.

55182798720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 55182798720 in words is "fifty-five billion, one hundred eighty-two million, seven hundred ninety-eight thousand, seven hundred twenty".