55994129280 has 512 divisors, whose sum is σ = 209392128000. Its totient is φ = 14113161216.

The previous prime is 55994129273. The next prime is 55994129297. The reversal of 55994129280 is 8292149955.

55994129280 is a `hidden beast` number, since 5 + 599 + 4 + 1 + 29 + 28 + 0 = 666.

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 (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35371369 + ... + 35372951.

It is an arithmetic number, because the mean of its divisors is an integer number (408969000).

Almost surely, 2^55994129280 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 55994129280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104696064000).

55994129280 is an abundant number, since it is smaller than the sum of its proper divisors (153397998720).

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

55994129280 is a wasteful number, since it uses less digits than its factorization.

55994129280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 55994129280 in words is "fifty-five billion, nine hundred ninety-four million, one hundred twenty-nine thousand, two hundred eighty".