55148944 has 40 divisors (see below), whose sum is σ = 115538240. Its totient is φ = 25411968.

The previous prime is 55148927. The next prime is 55148953. The reversal of 55148944 is 44984155.

It is a junction number, because it is equal to n+sod(n) for n = 55148897 and 55148906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8797 + ... + 13699.

It is an arithmetic number, because the mean of its divisors is an integer number (2888456).

Almost surely, 2^55148944 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 55148944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57769120).

55148944 is an abundant number, since it is smaller than the sum of its proper divisors (60389296).

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

55148944 is a wasteful number, since it uses less digits than its factorization.

55148944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967 (or 4961 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 55148944 is about 7426.2335002342. The cubic root of 55148944 is about 380.6382257190.

The spelling of 55148944 in words is "fifty-five million, one hundred forty-eight thousand, nine hundred forty-four".