54421686 has 48 divisors (see below), whose sum is σ = 132946800. Its totient is φ = 16489440.

The previous prime is 54421667. The next prime is 54421691. The reversal of 54421686 is 68612445.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54421686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2370 + ... + 10698.

It is an arithmetic number, because the mean of its divisors is an integer number (2769725).

Almost surely, 2^54421686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54421686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66473400).

54421686 is an abundant number, since it is smaller than the sum of its proper divisors (78525114).

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

54421686 is a wasteful number, since it uses less digits than its factorization.

54421686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8362 (or 8345 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 54421686 is about 7377.1055299487. The cubic root of 54421686 is about 378.9576373496.

The spelling of 54421686 in words is "fifty-four million, four hundred twenty-one thousand, six hundred eighty-six".