54320420 has 72 divisors (see below), whose sum is σ = 144789120. Its totient is φ = 16927680.

The previous prime is 54320353. The next prime is 54320437. The reversal of 54320420 is 2402345.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 54320392 and 54320401.

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, 8261 + ... + 13299.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^54320420 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 54320420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72394560).

54320420 is an abundant number, since it is smaller than the sum of its proper divisors (90468700).

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

54320420 is a wasteful number, since it uses less digits than its factorization.

54320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073 (or 5064 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 54320420 is about 7370.2388021013. The cubic root of 54320420 is about 378.7224409651.

Adding to 54320420 its reverse (2402345), we get a palindrome (56722765).

The spelling of 54320420 in words is "fifty-four million, three hundred twenty thousand, four hundred twenty".