5331515521 has 2 divisors, whose sum is σ = 5331515522. Its totient is φ = 5331515520.

The previous prime is 5331515491. The next prime is 5331515531. The reversal of 5331515521 is 1255151335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2706080400 + 2625435121 = 52020^2 + 51239^2 .

It is a cyclic number.

It is not a de Polignac number, because 5331515521 - 2⁷ = 5331515393 is a prime.

It is not a weakly prime, because it can be changed into another prime (5331515531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2665757760 + 2665757761.

It is an arithmetic number, because the mean of its divisors is an integer number (2665757761).

Almost surely, 2^5331515521 is an apocalyptic number.

It is an amenable number.

5331515521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5331515521 is an equidigital number, since it uses as much as digits as its factorization.

5331515521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11250, while the sum is 31.

The square root of 5331515521 is about 73017.2275630895. The cubic root of 5331515521 is about 1746.9624062481.

Adding to 5331515521 its reverse (1255151335), we get a palindrome (6586666856).

The spelling of 5331515521 in words is "five billion, three hundred thirty-one million, five hundred fifteen thousand, five hundred twenty-one".