5111061061 has 4 divisors (see below), whose sum is σ = 5115495052. Its totient is φ = 5106627072.

The previous prime is 5111061041. The next prime is 5111061071. The reversal of 5111061061 is 1601601115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1601601115 = 5 ⋅320320223.

It can be written as a sum of positive squares in 2 ways, for example, as 2389352161 + 2721708900 = 48881^2 + 52170^2 .

It is a cyclic number.

It is not a de Polignac number, because 5111061061 - 2¹¹ = 5111059013 is a prime.

It is a super-2 number, since 2×5111061061² = 52245890338540891442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111061041) 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, 2215266 + ... + 2217571.

It is an arithmetic number, because the mean of its divisors is an integer number (1278873763).

Almost surely, 2^5111061061 is an apocalyptic number.

It is an amenable number.

5111061061 is a deficient number, since it is larger than the sum of its proper divisors (4433991).

5111061061 is a wasteful number, since it uses less digits than its factorization.

5111061061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433990.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 5111061061 is about 71491.6852577976. The cubic root of 5111061061 is about 1722.5441281300.

Adding to 5111061061 its reverse (1601601115), we get a palindrome (6712662176).

The spelling of 5111061061 in words is "five billion, one hundred eleven million, sixty-one thousand, sixty-one".