5086821521 has 4 divisors (see below), whose sum is σ = 5092430832. Its totient is φ = 5081212212.

The previous prime is 5086821499. The next prime is 5086821529. The reversal of 5086821521 is 1251286805.

5086821521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5086821521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5086821529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803295 + ... + 2805108.

It is an arithmetic number, because the mean of its divisors is an integer number (1273107708).

Almost surely, 2^5086821521 is an apocalyptic number.

It is an amenable number.

5086821521 is a deficient number, since it is larger than the sum of its proper divisors (5609311).

5086821521 is an equidigital number, since it uses as much as digits as its factorization.

5086821521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609310.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 5086821521 is about 71321.9567945244. The cubic root of 5086821521 is about 1719.8167193610.

The spelling of 5086821521 in words is "five billion, eighty-six million, eight hundred twenty-one thousand, five hundred twenty-one".