5133821 has 16 divisors (see below), whose sum is σ = 6511488. Its totient is φ = 3931200.

The previous prime is 5133809. The next prime is 5133839. The reversal of 5133821 is 1283315.

It is not a de Polignac number, because 5133821 - 2⁶ = 5133757 is a prime.

It is a super-2 number, since 2×5133821² = 52712236120082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5133851) 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, 4151 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (406968).

Almost surely, 2^5133821 is an apocalyptic number.

It is an amenable number.

5133821 is a deficient number, since it is larger than the sum of its proper divisors (1377667).

5133821 is a wasteful number, since it uses less digits than its factorization.

5133821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its digits is 720, while the sum is 23.

The square root of 5133821 is about 2265.7936799276. The cubic root of 5133821 is about 172.5097214993.

It can be divided in two parts, 513 and 3821, that added together give a palindrome (4334).

The spelling of 5133821 in words is "five million, one hundred thirty-three thousand, eight hundred twenty-one".