51268697 has 2 divisors, whose sum is σ = 51268698. Its totient is φ = 51268696.

The previous prime is 51268691. The next prime is 51268733. The reversal of 51268697 is 79686215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45212176 + 6056521 = 6724^2 + 2461^2 .

It is a cyclic number.

It is not a de Polignac number, because 51268697 - 2¹⁰ = 51267673 is a prime.

It is not a weakly prime, because it can be changed into another prime (51268691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25634348 + 25634349.

It is an arithmetic number, because the mean of its divisors is an integer number (25634349).

Almost surely, 2^51268697 is an apocalyptic number.

It is an amenable number.

51268697 is a deficient number, since it is larger than the sum of its proper divisors (1).

51268697 is an equidigital number, since it uses as much as digits as its factorization.

51268697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 51268697 is about 7160.2162676835. The cubic root of 51268697 is about 371.4931070661.

The spelling of 51268697 in words is "fifty-one million, two hundred sixty-eight thousand, six hundred ninety-seven".