51375263 has 2 divisors, whose sum is σ = 51375264. Its totient is φ = 51375262.

The previous prime is 51375251. The next prime is 51375271. The reversal of 51375263 is 36257315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51375263 - 2⁶ = 51375199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51375763) by changing a digit.

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, 25687631 + 25687632.

It is an arithmetic number, because the mean of its divisors is an integer number (25687632).

Almost surely, 2^51375263 is an apocalyptic number.

51375263 is a deficient number, since it is larger than the sum of its proper divisors (1).

51375263 is an equidigital number, since it uses as much as digits as its factorization.

51375263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 32.

The square root of 51375263 is about 7167.6539397490. The cubic root of 51375263 is about 371.7503214360.

The spelling of 51375263 in words is "fifty-one million, three hundred seventy-five thousand, two hundred sixty-three".