54381894 has 32 divisors (see below), whose sum is σ = 125473536. Its totient is φ = 15391200.

The previous prime is 54381889. The next prime is 54381923. The reversal of 54381894 is 49818345.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

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, 1557 + ... + 10544.

It is an arithmetic number, because the mean of its divisors is an integer number (3921048).

Almost surely, 2^54381894 is an apocalyptic number.

54381894 is an abundant number, since it is smaller than the sum of its proper divisors (71091642).

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

54381894 is a wasteful number, since it uses less digits than its factorization.

54381894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220.

The product of its digits is 138240, while the sum is 42.

The square root of 54381894 is about 7374.4080440399. The cubic root of 54381894 is about 378.8652528600.

The spelling of 54381894 in words is "fifty-four million, three hundred eighty-one thousand, eight hundred ninety-four".