51707393 has 2 divisors, whose sum is σ = 51707394. Its totient is φ = 51707392.

The previous prime is 51707347. The next prime is 51707399. The reversal of 51707393 is 39370715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47430769 + 4276624 = 6887^2 + 2068^2 .

It is a cyclic number.

It is not a de Polignac number, because 51707393 - 2⁸ = 51707137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51707399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25853696 + 25853697.

It is an arithmetic number, because the mean of its divisors is an integer number (25853697).

Almost surely, 2^51707393 is an apocalyptic number.

It is an amenable number.

51707393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51707393 is an equidigital number, since it uses as much as digits as its factorization.

51707393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 51707393 is about 7190.7852839589. The cubic root of 51707393 is about 372.5496965360.

The spelling of 51707393 in words is "fifty-one million, seven hundred seven thousand, three hundred ninety-three".