5262821821 has 8 divisors (see below), whose sum is σ = 5385916800. Its totient is φ = 5141087280.

The previous prime is 5262821813. The next prime is 5262821867. The reversal of 5262821821 is 1281282625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5262821821 - 2³ = 5262821813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5262821891) 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 7 ways as a sum of consecutive naturals, for example, 332281 + ... + 347758.

It is an arithmetic number, because the mean of its divisors is an integer number (673239600).

Almost surely, 2^5262821821 is an apocalyptic number.

It is an amenable number.

5262821821 is a deficient number, since it is larger than the sum of its proper divisors (123094979).

5262821821 is a wasteful number, since it uses less digits than its factorization.

5262821821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680219.

The product of its digits is 30720, while the sum is 37.

The square root of 5262821821 is about 72545.3087456384. The cubic root of 5262821821 is about 1739.4270607824.

The spelling of 5262821821 in words is "five billion, two hundred sixty-two million, eight hundred twenty-one thousand, eight hundred twenty-one".