54428917 has 8 divisors (see below), whose sum is σ = 58000536. Its totient is φ = 50898432.

The previous prime is 54428909. The next prime is 54428921. The reversal of 54428917 is 71982445.

It can be written as a sum of positive squares in 4 ways, for example, as 10458756 + 43970161 = 3234^2 + 6631^2 .

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 54428917 - 2³ = 54428909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54428917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54428947) 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, 7528 + ... + 12865.

It is an arithmetic number, because the mean of its divisors is an integer number (7250067).

Almost surely, 2^54428917 is an apocalyptic number.

It is an amenable number.

54428917 is a deficient number, since it is larger than the sum of its proper divisors (3571619).

54428917 is a wasteful number, since it uses less digits than its factorization.

54428917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20567.

The product of its digits is 80640, while the sum is 40.

The square root of 54428917 is about 7377.5956110375. The cubic root of 54428917 is about 378.9744206182.

The spelling of 54428917 in words is "fifty-four million, four hundred twenty-eight thousand, nine hundred seventeen".