5611005601 has 4 divisors (see below), whose sum is σ = 5941064772. Its totient is φ = 5280946432.

The previous prime is 5611005599. The next prime is 5611005607. The reversal of 5611005601 is 1065001165.

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 3865854976 + 1745150625 = 62176^2 + 41775^2 .

It is a cyclic number.

It is not a de Polignac number, because 5611005601 - 2¹ = 5611005599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5611005607) 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, 165029560 + ... + 165029593.

It is an arithmetic number, because the mean of its divisors is an integer number (1485266193).

Almost surely, 2^5611005601 is an apocalyptic number.

It is an amenable number.

5611005601 is a deficient number, since it is larger than the sum of its proper divisors (330059171).

5611005601 is a wasteful number, since it uses less digits than its factorization.

5611005601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330059170.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 5611005601 is about 74906.6459067552. The cubic root of 5611005601 is about 1776.9705657010.

Adding to 5611005601 its reverse (1065001165), we get a palindrome (6676006766).

The spelling of 5611005601 in words is "five billion, six hundred eleven million, five thousand, six hundred one".