3113521553 has 2 divisors, whose sum is σ = 3113521554. Its totient is φ = 3113521552.

The previous prime is 3113521513. The next prime is 3113521561. The reversal of 3113521553 is 3551253113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2230956289 + 882565264 = 47233^2 + 29708^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113521553 - 2⁸ = 3113521297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3113521513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556760776 + 1556760777.

It is an arithmetic number, because the mean of its divisors is an integer number (1556760777).

Almost surely, 2^3113521553 is an apocalyptic number.

It is an amenable number.

3113521553 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113521553 is an equidigital number, since it uses as much as digits as its factorization.

3113521553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6750, while the sum is 29.

The square root of 3113521553 is about 55798.9386368594. The cubic root of 3113521553 is about 1460.2166365532.

Adding to 3113521553 its reverse (3551253113), we get a palindrome (6664774666).

The spelling of 3113521553 in words is "three billion, one hundred thirteen million, five hundred twenty-one thousand, five hundred fifty-three".