51717416 has 16 divisors (see below), whose sum is σ = 99591540. Its totient is φ = 25159680.

The previous prime is 51717403. The next prime is 51717431. The reversal of 51717416 is 61471715.

It can be written as a sum of positive squares in 2 ways, for example, as 51696100 + 21316 = 7190^2 + 146^2 .

It is a super-2 number, since 2×51717416² = 5349382235434112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87065 + ... + 87656.

Almost surely, 2^51717416 is an apocalyptic number.

It is an amenable number.

51717416 is a deficient number, since it is larger than the sum of its proper divisors (47874124).

51717416 is a wasteful number, since it uses less digits than its factorization.

51717416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174764 (or 174760 counting only the distinct ones).

The product of its digits is 5880, while the sum is 32.

The square root of 51717416 is about 7191.4821838061. The cubic root of 51717416 is about 372.5737667521.

The spelling of 51717416 in words is "fifty-one million, seven hundred seventeen thousand, four hundred sixteen".