5233736821 has 2 divisors, whose sum is σ = 5233736822. Its totient is φ = 5233736820.

The previous prime is 5233736741. The next prime is 5233736861. The reversal of 5233736821 is 1286373325.

It is an a-pointer prime, because the next prime (5233736861) can be obtained adding 5233736821 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5142324100 + 91412721 = 71710^2 + 9561^2 .

It is a cyclic number.

It is not a de Polignac number, because 5233736821 - 2⁷ = 5233736693 is a prime.

It is a super-2 number, since 2×5233736821² = 54784002222982372082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5233736861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2616868410 + 2616868411.

It is an arithmetic number, because the mean of its divisors is an integer number (2616868411).

Almost surely, 2^5233736821 is an apocalyptic number.

It is an amenable number.

5233736821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5233736821 is an equidigital number, since it uses as much as digits as its factorization.

5233736821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 5233736821 is about 72344.5700864965. The cubic root of 5233736821 is about 1736.2168234784.

The spelling of 5233736821 in words is "five billion, two hundred thirty-three million, seven hundred thirty-six thousand, eight hundred twenty-one".