5105505505061 has 4 divisors (see below), whose sum is σ = 5498236697772. Its totient is φ = 4712774312352.

The previous prime is 5105505505019. The next prime is 5105505505073. The reversal of 5105505505061 is 1605055055015.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 602748824161 + 4502756680900 = 776369^2 + 2121970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5105505505061 is a prime.

It is a super-2 number, since 2×5105505505061² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105505505091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196365596336 + ... + 196365596361.

It is an arithmetic number, because the mean of its divisors is an integer number (1374559174443).

Almost surely, 2^{5105505505061} is an apocalyptic number.

It is an amenable number.

5105505505061 is a deficient number, since it is larger than the sum of its proper divisors (392731192711).

5105505505061 is a wasteful number, since it uses less digits than its factorization.

5105505505061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392731192710.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 5105505505061 in words is "five trillion, one hundred five billion, five hundred five million, five hundred five thousand, sixty-one".