51375271 has 2 divisors, whose sum is σ = 51375272. Its totient is φ = 51375270.

The previous prime is 51375263. The next prime is 51375281. The reversal of 51375271 is 17257315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51375271 - 2³ = 51375263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51375251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25687635 + 25687636.

It is an arithmetic number, because the mean of its divisors is an integer number (25687636).

Almost surely, 2^51375271 is an apocalyptic number.

51375271 is a deficient number, since it is larger than the sum of its proper divisors (1).

51375271 is an equidigital number, since it uses as much as digits as its factorization.

51375271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7350, while the sum is 31.

The square root of 51375271 is about 7167.6544978117. The cubic root of 51375271 is about 371.7503407320.

The spelling of 51375271 in words is "fifty-one million, three hundred seventy-five thousand, two hundred seventy-one".