54828729 has 6 divisors (see below), whose sum is σ = 79197066. Its totient is φ = 36552480.

The previous prime is 54828707. The next prime is 54828731. The reversal of 54828729 is 92782845.

54828729 is a `hidden beast` number, since 548 + 2 + 87 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52533504 + 2295225 = 7248^2 + 1515^2 .

It is not a de Polignac number, because 54828729 - 2⁷ = 54828601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54828749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3046032 + ... + 3046049.

It is an arithmetic number, because the mean of its divisors is an integer number (13199511).

Almost surely, 2^54828729 is an apocalyptic number.

It is an amenable number.

54828729 is a deficient number, since it is larger than the sum of its proper divisors (24368337).

54828729 is a wasteful number, since it uses less digits than its factorization.

54828729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092087 (or 6092084 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 54828729 is about 7404.6423951464. The cubic root of 54828729 is about 379.9000868439.

The spelling of 54828729 in words is "fifty-four million, eight hundred twenty-eight thousand, seven hundred twenty-nine".