54021580 has 48 divisors (see below), whose sum is σ = 122199840. Its totient is φ = 19985408.

The previous prime is 54021553. The next prime is 54021581. The reversal of 54021580 is 8512045.

54021580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×54021580² = 5836662211392800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54021581) 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 15 ways as a sum of consecutive naturals, for example, 18714 + ... + 21406.

It is an arithmetic number, because the mean of its divisors is an integer number (2545830).

Almost surely, 2^54021580 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 54021580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61099920).

54021580 is an abundant number, since it is smaller than the sum of its proper divisors (68178260).

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

54021580 is a wasteful number, since it uses less digits than its factorization.

54021580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778 (or 2776 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 54021580 is about 7349.9374146995. The cubic root of 54021580 is about 378.0266584411.

The spelling of 54021580 in words is "fifty-four million, twenty-one thousand, five hundred eighty".