51716626 has 8 divisors (see below), whose sum is σ = 83542284. Its totient is φ = 23869200.

The previous prime is 51716611. The next prime is 51716633. The reversal of 51716626 is 62661715.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48650625 + 3066001 = 6975^2 + 1751^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 51716591 and 51716600.

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, 994525 + ... + 994576.

Almost surely, 2^51716626 is an apocalyptic number.

51716626 is a deficient number, since it is larger than the sum of its proper divisors (31825658).

51716626 is a wasteful number, since it uses less digits than its factorization.

51716626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989116.

The product of its digits is 15120, while the sum is 34.

The square root of 51716626 is about 7191.4272575060. The cubic root of 51716626 is about 372.5718696815.

The spelling of 51716626 in words is "fifty-one million, seven hundred sixteen thousand, six hundred twenty-six".