51388327 has 2 divisors, whose sum is σ = 51388328. Its totient is φ = 51388326.

The previous prime is 51388307. The next prime is 51388349. The reversal of 51388327 is 72388315.

51388327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51388327 - 2¹⁵ = 51355559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51388307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25694163 + 25694164.

It is an arithmetic number, because the mean of its divisors is an integer number (25694164).

Almost surely, 2^51388327 is an apocalyptic number.

51388327 is a deficient number, since it is larger than the sum of its proper divisors (1).

51388327 is an equidigital number, since it uses as much as digits as its factorization.

51388327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 51388327 is about 7168.5651981411. The cubic root of 51388327 is about 371.7818290419.

It can be divided in two parts, 51388 and 327, that added together give a palindrome (51715).

The spelling of 51388327 in words is "fifty-one million, three hundred eighty-eight thousand, three hundred twenty-seven".