51374317 has 2 divisors, whose sum is σ = 51374318. Its totient is φ = 51374316.

The previous prime is 51374311. The next prime is 51374321. The reversal of 51374317 is 71347315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50779876 + 594441 = 7126^2 + 771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51374317 is a prime.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 51374317 parts by 10136 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51374311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25687158 + 25687159.

It is an arithmetic number, because the mean of its divisors is an integer number (25687159).

Almost surely, 2^51374317 is an apocalyptic number.

It is an amenable number.

51374317 is a deficient number, since it is larger than the sum of its proper divisors (1).

51374317 is an equidigital number, since it uses as much as digits as its factorization.

51374317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 31.

The square root of 51374317 is about 7167.5879485361. The cubic root of 51374317 is about 371.7480396767.

The spelling of 51374317 in words is "fifty-one million, three hundred seventy-four thousand, three hundred seventeen".