5561101001 has 4 divisors (see below), whose sum is σ = 5566454400. Its totient is φ = 5555747604.

The previous prime is 5561100989. The next prime is 5561101027. The reversal of 5561101001 is 1001011655.

5561101001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5561101001 - 2¹⁰ = 5561099977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561101201) 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, 2675141 + ... + 2677218.

It is an arithmetic number, because the mean of its divisors is an integer number (1391613600).

Almost surely, 2^5561101001 is an apocalyptic number.

It is an amenable number.

5561101001 is a deficient number, since it is larger than the sum of its proper divisors (5353399).

5561101001 is a wasteful number, since it uses less digits than its factorization.

5561101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353398.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 5561101001 is about 74572.7899504907. The cubic root of 5561101001 is about 1771.6867108521.

Adding to 5561101001 its reverse (1001011655), we get a palindrome (6562112656).

The spelling of 5561101001 in words is "five billion, five hundred sixty-one million, one hundred one thousand, one".