5513632561 has 2 divisors, whose sum is σ = 5513632562. Its totient is φ = 5513632560.

The previous prime is 5513632513. The next prime is 5513632567. The reversal of 5513632561 is 1652363155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3858770161 + 1654862400 = 62119^2 + 40680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5513632561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5513632561.

It is not a weakly prime, because it can be changed into another prime (5513632567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756816280 + 2756816281.

It is an arithmetic number, because the mean of its divisors is an integer number (2756816281).

Almost surely, 2^5513632561 is an apocalyptic number.

It is an amenable number.

5513632561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5513632561 is an equidigital number, since it uses as much as digits as its factorization.

5513632561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 37.

The square root of 5513632561 is about 74253.8386953833. The cubic root of 5513632561 is about 1766.6313791733.

The spelling of 5513632561 in words is "five billion, five hundred thirteen million, six hundred thirty-two thousand, five hundred sixty-one".