54828513 has 6 divisors (see below), whose sum is σ = 79196754. Its totient is φ = 36552336.

The previous prime is 54828511. The next prime is 54828517. The reversal of 54828513 is 31582845.

54828513 = 1412² + 1413² + ... + 1438².

It is a happy number.

54828513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 33732864 + 21095649 = 5808^2 + 4593^2 .

It is not a de Polignac number, because 54828513 - 2¹ = 54828511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54828511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3046020 + ... + 3046037.

It is an arithmetic number, because the mean of its divisors is an integer number (13199459).

Almost surely, 2^54828513 is an apocalyptic number.

It is an amenable number.

54828513 is a deficient number, since it is larger than the sum of its proper divisors (24368241).

54828513 is a wasteful number, since it uses less digits than its factorization.

54828513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092063 (or 6092060 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 54828513 is about 7404.6278096877. The cubic root of 54828513 is about 379.8995879660.

The spelling of 54828513 in words is "fifty-four million, eight hundred twenty-eight thousand, five hundred thirteen".