51911116 has 12 divisors (see below), whose sum is σ = 95625880. Its totient is φ = 24589440.

The previous prime is 51911113. The next prime is 51911129. The reversal of 51911116 is 61111915.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51911113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341445 + ... + 341596.

Almost surely, 2^51911116 is an apocalyptic number.

It is an amenable number.

51911116 is a deficient number, since it is larger than the sum of its proper divisors (43714764).

51911116 is a wasteful number, since it uses less digits than its factorization.

51911116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683064 (or 683062 counting only the distinct ones).

The product of its digits is 270, while the sum is 25.

The square root of 51911116 is about 7204.9369185302. The cubic root of 51911116 is about 373.0383273943.

The spelling of 51911116 in words is "fifty-one million, nine hundred eleven thousand, one hundred sixteen".