54015820 has 24 divisors (see below), whose sum is σ = 113735664. Its totient is φ = 21548736.

The previous prime is 54015811. The next prime is 54015821. The reversal of 54015820 is 2851045.

54015820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (54015821) 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 7 ways as a sum of consecutive naturals, for example, 4539 + ... + 11341.

It is an arithmetic number, because the mean of its divisors is an integer number (4738986).

Almost surely, 2^54015820 is an apocalyptic number.

It is an amenable number.

54015820 is an abundant number, since it is smaller than the sum of its proper divisors (59719844).

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

54015820 is a wasteful number, since it uses less digits than its factorization.

54015820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7209 (or 7207 counting only the distinct ones).

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

The square root of 54015820 is about 7349.5455641829. The cubic root of 54015820 is about 378.0132223849.

Adding to 54015820 its reverse (2851045), we get a palindrome (56866865).

The spelling of 54015820 in words is "fifty-four million, fifteen thousand, eight hundred twenty".