51916718 has 16 divisors (see below), whose sum is σ = 89238240. Its totient is φ = 22190496.

The previous prime is 51916703. The next prime is 51916747. The reversal of 51916718 is 81761915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680 + ... + 10212.

It is an arithmetic number, because the mean of its divisors is an integer number (5577390).

Almost surely, 2^51916718 is an apocalyptic number.

51916718 is a deficient number, since it is larger than the sum of its proper divisors (37321522).

51916718 is a wasteful number, since it uses less digits than its factorization.

51916718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9931.

The product of its digits is 15120, while the sum is 38.

The square root of 51916718 is about 7205.3256692533. The cubic root of 51916718 is about 373.0517457506.

The spelling of 51916718 in words is "fifty-one million, nine hundred sixteen thousand, seven hundred eighteen".