51036697 has 2 divisors, whose sum is σ = 51036698. Its totient is φ = 51036696.

The previous prime is 51036691. The next prime is 51036707. The reversal of 51036697 is 79663015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46090521 + 4946176 = 6789^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 51036697 - 2¹⁹ = 50512409 is a prime.

It is not a weakly prime, because it can be changed into another prime (51036691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25518348 + 25518349.

It is an arithmetic number, because the mean of its divisors is an integer number (25518349).

Almost surely, 2^51036697 is an apocalyptic number.

It is an amenable number.

51036697 is a deficient number, since it is larger than the sum of its proper divisors (1).

51036697 is an equidigital number, since it uses as much as digits as its factorization.

51036697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 51036697 is about 7143.9972704362. The cubic root of 51036697 is about 370.9319021682.

The spelling of 51036697 in words is "fifty-one million, thirty-six thousand, six hundred ninety-seven".