5561051051 has 4 divisors (see below), whose sum is σ = 5569646832. Its totient is φ = 5552455272.

The previous prime is 5561051039. The next prime is 5561051131. The reversal of 5561051051 is 1501501655.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561051051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561051351) 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, 4296920 + ... + 4298213.

It is an arithmetic number, because the mean of its divisors is an integer number (1392411708).

Almost surely, 2^5561051051 is an apocalyptic number.

5561051051 is a deficient number, since it is larger than the sum of its proper divisors (8595781).

5561051051 is an equidigital number, since it uses as much as digits as its factorization.

5561051051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8595780.

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

The square root of 5561051051 is about 74572.4550420596. The cubic root of 5561051051 is about 1771.6814063860.

The spelling of 5561051051 in words is "five billion, five hundred sixty-one million, fifty-one thousand, fifty-one".