54721111 has 8 divisors (see below), whose sum is σ = 55870704. Its totient is φ = 53581440.

The previous prime is 54721099. The next prime is 54721123. The reversal of 54721111 is 11112745.

It is an interprime number because it is at equal distance from previous prime (54721099) and next prime (54721123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54721111 - 2²⁵ = 21166679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54721141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9231 + ... + 13951.

It is an arithmetic number, because the mean of its divisors is an integer number (6983838).

Almost surely, 2^54721111 is an apocalyptic number.

54721111 is a deficient number, since it is larger than the sum of its proper divisors (1149593).

54721111 is a wasteful number, since it uses less digits than its factorization.

54721111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961.

The product of its digits is 280, while the sum is 22.

The square root of 54721111 is about 7397.3718981811. The cubic root of 54721111 is about 379.6513676862.

Adding to 54721111 its reverse (11112745), we get a palindrome (65833856).

The spelling of 54721111 in words is "fifty-four million, seven hundred twenty-one thousand, one hundred eleven".