51376291 has 2 divisors, whose sum is σ = 51376292. Its totient is φ = 51376290.

The previous prime is 51376277. The next prime is 51376327. The reversal of 51376291 is 19267315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51376291 - 2¹⁹ = 50852003 is a prime.

It is not a weakly prime, because it can be changed into another prime (51376211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25688145 + 25688146.

It is an arithmetic number, because the mean of its divisors is an integer number (25688146).

Almost surely, 2^51376291 is an apocalyptic number.

51376291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51376291 is an equidigital number, since it uses as much as digits as its factorization.

51376291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 51376291 is about 7167.7256504417. The cubic root of 51376291 is about 371.7528009483.

The spelling of 51376291 in words is "fifty-one million, three hundred seventy-six thousand, two hundred ninety-one".