55474288128 has 320 divisors, whose sum is σ = 188871006720. Its totient is φ = 15748079616.

The previous prime is 55474288127. The next prime is 55474288139. The reversal of 55474288128 is 82188247455.

55474288128 is a `hidden beast` number, since 5 + 547 + 4 + 2 + 88 + 12 + 8 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55474288127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15771426 + ... + 15774942.

It is an arithmetic number, because the mean of its divisors is an integer number (590221896).

Almost surely, 2^55474288128 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 55474288128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94435503360).

55474288128 is an abundant number, since it is smaller than the sum of its proper divisors (133396718592).

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

55474288128 is a wasteful number, since it uses less digits than its factorization.

55474288128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714 (or 3692 counting only the distinct ones).

The product of its digits is 5734400, while the sum is 54.

The spelling of 55474288128 in words is "fifty-five billion, four hundred seventy-four million, two hundred eighty-eight thousand, one hundred twenty-eight".