51538727 has 2 divisors, whose sum is σ = 51538728. Its totient is φ = 51538726.

The previous prime is 51538693. The next prime is 51538741. The reversal of 51538727 is 72783515.

It is a happy number.

51538727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51538727 - 2⁸ = 51538471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51538777) 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, 25769363 + 25769364.

It is an arithmetic number, because the mean of its divisors is an integer number (25769364).

Almost surely, 2^51538727 is an apocalyptic number.

51538727 is a deficient number, since it is larger than the sum of its proper divisors (1).

51538727 is an equidigital number, since it uses as much as digits as its factorization.

51538727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 38.

The square root of 51538727 is about 7179.0477780831. The cubic root of 51538727 is about 372.1441780321.

The spelling of 51538727 in words is "fifty-one million, five hundred thirty-eight thousand, seven hundred twenty-seven".