5561100613 has 2 divisors, whose sum is σ = 5561100614. Its totient is φ = 5561100612.

The previous prime is 5561100599. The next prime is 5561100617. The reversal of 5561100613 is 3160011655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5181552289 + 379548324 = 71983^2 + 19482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561100613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5561100617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780550306 + 2780550307.

It is an arithmetic number, because the mean of its divisors is an integer number (2780550307).

Almost surely, 2^5561100613 is an apocalyptic number.

It is an amenable number.

5561100613 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561100613 is an equidigital number, since it uses as much as digits as its factorization.

5561100613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 5561100613 is about 74572.7873490055. The cubic root of 5561100613 is about 1771.6866696484.

The spelling of 5561100613 in words is "five billion, five hundred sixty-one million, one hundred thousand, six hundred thirteen".