5513828681 has 2 divisors, whose sum is σ = 5513828682. Its totient is φ = 5513828680.

The previous prime is 5513828629. The next prime is 5513828687. The reversal of 5513828681 is 1868283155.

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., 3552756025 + 1961072656 = 59605^2 + 44284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5513828681 is a prime.

It is a super-2 number, since 2×5513828681² = 60804613446836399522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5513828687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756914340 + 2756914341.

It is an arithmetic number, because the mean of its divisors is an integer number (2756914341).

Almost surely, 2^5513828681 is an apocalyptic number.

It is an amenable number.

5513828681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5513828681 is an equidigital number, since it uses as much as digits as its factorization.

5513828681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 47.

The square root of 5513828681 is about 74255.1592887659. The cubic root of 5513828681 is about 1766.6523252940.

The spelling of 5513828681 in words is "five billion, five hundred thirteen million, eight hundred twenty-eight thousand, six hundred eighty-one".