55424286720 has 1024 divisors, whose sum is σ = 231018739200. Its totient is φ = 12457082880.

The previous prime is 55424286707. The next prime is 55424286733. The reversal of 55424286720 is 2768242455.

55424286720 is a `hidden beast` number, since 5 + 542 + 4 + 2 + 86 + 7 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (55424286707) and next prime (55424286733).

It is a tau number, because it is divible by the number of its divisors (1024).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 827228127 + ... + 827228193.

Almost surely, 2^55424286720 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 55424286720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115509369600).

55424286720 is an abundant number, since it is smaller than the sum of its proper divisors (175594452480).

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

55424286720 is a wasteful number, since it uses less digits than its factorization.

55424286720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The spelling of 55424286720 in words is "fifty-five billion, four hundred twenty-four million, two hundred eighty-six thousand, seven hundred twenty".