5105100050561 has 4 divisors (see below), whose sum is σ = 5834400057792. Its totient is φ = 4375800043332.

The previous prime is 5105100050461. The next prime is 5105100050573. The reversal of 5105100050561 is 1650500015015.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5105100050561 - 2³⁰ = 5104026308737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5105100050161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364650003605 + ... + 364650003618.

It is an arithmetic number, because the mean of its divisors is an integer number (1458600014448).

Almost surely, 2^{5105100050561} is an apocalyptic number.

It is an amenable number.

5105100050561 is a deficient number, since it is larger than the sum of its proper divisors (729300007231).

5105100050561 is an equidigital number, since it uses as much as digits as its factorization.

5105100050561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729300007230.

The product of its (nonzero) digits is 3750, while the sum is 29.

Adding to 5105100050561 its reverse (1650500015015), we get a palindrome (6755600065576).

The spelling of 5105100050561 in words is "five trillion, one hundred five billion, one hundred million, fifty thousand, five hundred sixty-one".