51304291 has 2 divisors, whose sum is σ = 51304292. Its totient is φ = 51304290.

The previous prime is 51304241. The next prime is 51304333. The reversal of 51304291 is 19240315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51304291 - 2²³ = 42915683 is a prime.

It is not a weakly prime, because it can be changed into another prime (51304241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25652145 + 25652146.

It is an arithmetic number, because the mean of its divisors is an integer number (25652146).

Almost surely, 2^51304291 is an apocalyptic number.

51304291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51304291 is an equidigital number, since it uses as much as digits as its factorization.

51304291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 51304291 is about 7162.7013758777. The cubic root of 51304291 is about 371.5790585826.

The spelling of 51304291 in words is "fifty-one million, three hundred four thousand, two hundred ninety-one".