5335800821 has 16 divisors (see below), whose sum is σ = 5905359600. Its totient is φ = 4789145088.

The previous prime is 5335800763. The next prime is 5335800839. The reversal of 5335800821 is 1280085335.

It can be written as a sum of positive squares in 8 ways, for example, as 125126596 + 5210674225 = 11186^2 + 72185^2 .

It is not a de Polignac number, because 5335800821 - 2¹⁰ = 5335799797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5335800121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088945 + ... + 1093833.

It is an arithmetic number, because the mean of its divisors is an integer number (369084975).

Almost surely, 2^5335800821 is an apocalyptic number.

It is an amenable number.

5335800821 is a deficient number, since it is larger than the sum of its proper divisors (569558779).

5335800821 is a wasteful number, since it uses less digits than its factorization.

5335800821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7208.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 5335800821 is about 73046.5661136785. The cubic root of 5335800821 is about 1747.4303315580.

The spelling of 5335800821 in words is "five billion, three hundred thirty-five million, eight hundred thousand, eight hundred twenty-one".