54191664 has 60 divisors (see below), whose sum is σ = 152334000. Its totient is φ = 17983872.

The previous prime is 54191659. The next prime is 54191671. The reversal of 54191664 is 46619145.

54191664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 38037 + ... + 39435.

It is an arithmetic number, because the mean of its divisors is an integer number (2538900).

Almost surely, 2^54191664 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 54191664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76167000).

54191664 is an abundant number, since it is smaller than the sum of its proper divisors (98142336).

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

54191664 is a wasteful number, since it uses less digits than its factorization.

54191664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1673 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 54191664 is about 7361.4987604427. The cubic root of 54191664 is about 378.4229749142.

The spelling of 54191664 in words is "fifty-four million, one hundred ninety-one thousand, six hundred sixty-four".