51703291 has 2 divisors, whose sum is σ = 51703292. Its totient is φ = 51703290.

The previous prime is 51703261. The next prime is 51703321. The reversal of 51703291 is 19230715.

It is a balanced prime because it is at equal distance from previous prime (51703261) and next prime (51703321).

It is a cyclic number.

It is not a de Polignac number, because 51703291 - 2⁹ = 51702779 is a prime.

It is the 7191-st Hogben number.

It is not a weakly prime, because it can be changed into another prime (51703261) by changing a digit.

It is a nontrivial repunit in base 7190.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25851645 + 25851646.

It is an arithmetic number, because the mean of its divisors is an integer number (25851646).

Almost surely, 2^51703291 is an apocalyptic number.

51703291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51703291 is an equidigital number, since it uses as much as digits as its factorization.

51703291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 51703291 is about 7190.5000521521. The cubic root of 51703291 is about 372.5398446936.

The spelling of 51703291 in words is "fifty-one million, seven hundred three thousand, two hundred ninety-one".