55148417328 has 80 divisors (see below), whose sum is σ = 146992734720. Its totient is φ = 17807592192.

The previous prime is 55148417323. The next prime is 55148417341. The reversal of 55148417328 is 82371484155.

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

It is not an unprimeable number, because it can be changed into a prime (55148417323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63775 + ... + 338177.

It is an arithmetic number, because the mean of its divisors is an integer number (1837409184).

Almost surely, 2^55148417328 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 55148417328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73496367360).

55148417328 is an abundant number, since it is smaller than the sum of its proper divisors (91844317392).

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

55148417328 is a wasteful number, since it uses less digits than its factorization.

55148417328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274546 (or 274540 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The spelling of 55148417328 in words is "fifty-five billion, one hundred forty-eight million, four hundred seventeen thousand, three hundred twenty-eight".