54891648 has 128 divisors (see below), whose sum is σ = 185232000. Its totient is φ = 15676416.

The previous prime is 54891611. The next prime is 54891659. The reversal of 54891648 is 84619845.

54891648 is a `hidden beast` number, since 5 + 489 + 164 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23058 + ... + 25326.

It is an arithmetic number, because the mean of its divisors is an integer number (1447125).

Almost surely, 2^54891648 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 54891648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92616000).

54891648 is an abundant number, since it is smaller than the sum of its proper divisors (130340352).

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

54891648 is a wasteful number, since it uses less digits than its factorization.

54891648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299 (or 2281 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 54891648 is about 7408.8897953742. The cubic root of 54891648 is about 380.0453500816.

The spelling of 54891648 in words is "fifty-four million, eight hundred ninety-one thousand, six hundred forty-eight".