54544420 has 48 divisors (see below), whose sum is σ = 133394688. Its totient is φ = 18345600.

The previous prime is 54544417. The next prime is 54544463. The reversal of 54544420 is 2444545.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3745 + ... + 11095.

It is an arithmetic number, because the mean of its divisors is an integer number (2779056).

Almost surely, 2^54544420 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 54544420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66697344).

54544420 is an abundant number, since it is smaller than the sum of its proper divisors (78850268).

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

54544420 is a wasteful number, since it uses less digits than its factorization.

54544420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420 (or 7418 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 54544420 is about 7385.4194193695. The cubic root of 54544420 is about 379.2423036860.

Adding to 54544420 its reverse (2444545), we get a palindrome (56988965).

The spelling of 54544420 in words is "fifty-four million, five hundred forty-four thousand, four hundred twenty".