51716810 has 8 divisors (see below), whose sum is σ = 93090276. Its totient is φ = 20686720.

The previous prime is 51716809. The next prime is 51716843. The reversal of 51716810 is 1861715.

It can be written as a sum of positive squares in 2 ways, for example, as 48622729 + 3094081 = 6973^2 + 1759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51716810² = 5349256873152200, which contains 22 as substring.

It is an unprimeable number.

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, 2585831 + ... + 2585850.

Almost surely, 2^51716810 is an apocalyptic number.

51716810 is a deficient number, since it is larger than the sum of its proper divisors (41373466).

51716810 is a wasteful number, since it uses less digits than its factorization.

51716810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171688.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 51716810 is about 7191.4400505045. The cubic root of 51716810 is about 372.5723115325.

The spelling of 51716810 in words is "fifty-one million, seven hundred sixteen thousand, eight hundred ten".