50828513 has 4 divisors (see below), whose sum is σ = 51524868. Its totient is φ = 50132160.

The previous prime is 50828501. The next prime is 50828549. The reversal of 50828513 is 31582805.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18939904 + 31888609 = 4352^2 + 5647^2 .

It is a cyclic number.

It is not a de Polignac number, because 50828513 - 2²⁰ = 49779937 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 50828513.

It is not an unprimeable number, because it can be changed into a prime (50818513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348068 + ... + 348213.

It is an arithmetic number, because the mean of its divisors is an integer number (12881217).

Almost surely, 2^50828513 is an apocalyptic number.

It is an amenable number.

50828513 is a deficient number, since it is larger than the sum of its proper divisors (696355).

50828513 is an equidigital number, since it uses as much as digits as its factorization.

50828513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696354.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 50828513 is about 7129.4118270724. The cubic root of 50828513 is about 370.4268582211.

The spelling of 50828513 in words is "fifty million, eight hundred twenty-eight thousand, five hundred thirteen".