51757427 has 2 divisors, whose sum is σ = 51757428. Its totient is φ = 51757426.

The previous prime is 51757421. The next prime is 51757439. The reversal of 51757427 is 72475715.

51757427 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 51757427 - 2⁸ = 51757171 is a prime.

It is not a weakly prime, because it can be changed into another prime (51757421) 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, 25878713 + 25878714.

It is an arithmetic number, because the mean of its divisors is an integer number (25878714).

Almost surely, 2^51757427 is an apocalyptic number.

51757427 is a deficient number, since it is larger than the sum of its proper divisors (1).

51757427 is an equidigital number, since it uses as much as digits as its factorization.

51757427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68600, while the sum is 38.

The square root of 51757427 is about 7194.2634786335. The cubic root of 51757427 is about 372.6698221207.

The spelling of 51757427 in words is "fifty-one million, seven hundred fifty-seven thousand, four hundred twenty-seven".