51716611 has 2 divisors, whose sum is σ = 51716612. Its totient is φ = 51716610.

The previous prime is 51716603. The next prime is 51716633. The reversal of 51716611 is 11661715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51716611 - 2³ = 51716603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51716611.

It is not a weakly prime, because it can be changed into another prime (51716641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25858305 + 25858306.

It is an arithmetic number, because the mean of its divisors is an integer number (25858306).

Almost surely, 2^51716611 is an apocalyptic number.

51716611 is a deficient number, since it is larger than the sum of its proper divisors (1).

51716611 is an equidigital number, since it uses as much as digits as its factorization.

51716611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 28.

The square root of 51716611 is about 7191.4262145975. The cubic root of 51716611 is about 372.5718336609.

The spelling of 51716611 in words is "fifty-one million, seven hundred sixteen thousand, six hundred eleven".