5051105561 has 4 divisors (see below), whose sum is σ = 5051279232. Its totient is φ = 5050931892.

The previous prime is 5051105539. The next prime is 5051105573. The reversal of 5051105561 is 1655011505.

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 5051105561 - 2²² = 5046911257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5051105531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31421 + ... + 105306.

It is an arithmetic number, because the mean of its divisors is an integer number (1262819808).

Almost surely, 2^5051105561 is an apocalyptic number.

It is an amenable number.

5051105561 is a deficient number, since it is larger than the sum of its proper divisors (173671).

5051105561 is a wasteful number, since it uses less digits than its factorization.

5051105561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173670.

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

The square root of 5051105561 is about 71071.1302921235. The cubic root of 5051105561 is about 1715.7821613933.

The spelling of 5051105561 in words is "five billion, fifty-one million, one hundred five thousand, five hundred sixty-one".