5611511212 has 6 divisors (see below), whose sum is σ = 9820144628. Its totient is φ = 2805755604.

The previous prime is 5611511209. The next prime is 5611511219. The reversal of 5611511212 is 2121151165.

It is not an unprimeable number, because it can be changed into a prime (5611511219) 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 as a sum of consecutive naturals, namely, 701438898 + ... + 701438905.

Almost surely, 2^5611511212 is an apocalyptic number.

It is an amenable number.

5611511212 is a deficient number, since it is larger than the sum of its proper divisors (4208633416).

5611511212 is a wasteful number, since it uses less digits than its factorization.

5611511212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402877807 (or 1402877805 counting only the distinct ones).

The product of its digits is 600, while the sum is 25.

The square root of 5611511212 is about 74910.0207715897. The cubic root of 5611511212 is about 1777.0239387172.

Adding to 5611511212 its reverse (2121151165), we get a palindrome (7732662377).

The spelling of 5611511212 in words is "five billion, six hundred eleven million, five hundred eleven thousand, two hundred twelve".