54721544 has 16 divisors (see below), whose sum is σ = 102711120. Its totient is φ = 27331920.

The previous prime is 54721543. The next prime is 54721547. The reversal of 54721544 is 44512745.

It is a self number, because there is not a number n which added to its sum of digits gives 54721544.

It is not an unprimeable number, because it can be changed into a prime (54721543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5939 + ... + 12029.

It is an arithmetic number, because the mean of its divisors is an integer number (6419445).

Almost surely, 2^54721544 is an apocalyptic number.

It is an amenable number.

54721544 is a deficient number, since it is larger than the sum of its proper divisors (47989576).

54721544 is a wasteful number, since it uses less digits than its factorization.

54721544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220 (or 7216 counting only the distinct ones).

The product of its digits is 22400, while the sum is 32.

The square root of 54721544 is about 7397.4011652742. The cubic root of 54721544 is about 379.6523690585.

The spelling of 54721544 in words is "fifty-four million, seven hundred twenty-one thousand, five hundred forty-four".