54991068 has 96 divisors (see below), whose sum is σ = 149022720. Its totient is φ = 15618240.

The previous prime is 54991067. The next prime is 54991087. The reversal of 54991068 is 86019945.

54991068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54991067) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 178971 + ... + 179277.

It is an arithmetic number, because the mean of its divisors is an integer number (1552320).

Almost surely, 2^54991068 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 54991068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74511360).

54991068 is an abundant number, since it is smaller than the sum of its proper divisors (94031652).

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

54991068 is a wasteful number, since it uses less digits than its factorization.

54991068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 54991068 is about 7415.5962673274. The cubic root of 54991068 is about 380.2746583123.

The spelling of 54991068 in words is "fifty-four million, nine hundred ninety-one thousand, sixty-eight".