5011566121 has 4 divisors (see below), whose sum is σ = 5147013892. Its totient is φ = 4876118352.

The previous prime is 5011566101. The next prime is 5011566151. The reversal of 5011566121 is 1216651105.

It is a happy number.

5011566121 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2616834025 + 2394732096 = 51155^2 + 48936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5011566121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5011566121.

It is not an unprimeable number, because it can be changed into a prime (5011566101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67723830 + ... + 67723903.

It is an arithmetic number, because the mean of its divisors is an integer number (1286753473).

Almost surely, 2^5011566121 is an apocalyptic number.

It is an amenable number.

5011566121 is a deficient number, since it is larger than the sum of its proper divisors (135447771).

5011566121 is a wasteful number, since it uses less digits than its factorization.

5011566121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135447770.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 5011566121 is about 70792.4157025313. The cubic root of 5011566121 is about 1711.2934505515.

The spelling of 5011566121 in words is "five billion, eleven million, five hundred sixty-six thousand, one hundred twenty-one".