51276971 has 2 divisors, whose sum is σ = 51276972. Its totient is φ = 51276970.

The previous prime is 51276949. The next prime is 51276977. The reversal of 51276971 is 17967215.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51276971 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51276977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25638485 + 25638486.

It is an arithmetic number, because the mean of its divisors is an integer number (25638486).

Almost surely, 2^51276971 is an apocalyptic number.

51276971 is a deficient number, since it is larger than the sum of its proper divisors (1).

51276971 is an equidigital number, since it uses as much as digits as its factorization.

51276971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 38.

The square root of 51276971 is about 7160.7940202187. The cubic root of 51276971 is about 371.5130904660.

The spelling of 51276971 in words is "fifty-one million, two hundred seventy-six thousand, nine hundred seventy-one".