54280644 has 96 divisors (see below), whose sum is σ = 151925760. Its totient is φ = 14889600.

The previous prime is 54280637. The next prime is 54280651. The reversal of 54280644 is 44608245.

It is an interprime number because it is at equal distance from previous prime (54280637) and next prime (54280651).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57214 + ... + 58154.

It is an arithmetic number, because the mean of its divisors is an integer number (1582560).

Almost surely, 2^54280644 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 54280644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75962880).

54280644 is an abundant number, since it is smaller than the sum of its proper divisors (97645116).

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

54280644 is a wasteful number, since it uses less digits than its factorization.

54280644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 54280644 is about 7367.5398879137. The cubic root of 54280644 is about 378.6299788537.

Adding to 54280644 its reverse (44608245), we get a palindrome (98888889).

The spelling of 54280644 in words is "fifty-four million, two hundred eighty thousand, six hundred forty-four".