51276457 has 2 divisors, whose sum is σ = 51276458. Its totient is φ = 51276456.

The previous prime is 51276443. The next prime is 51276461. The reversal of 51276457 is 75467215.

51276457 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 can be written as a sum of positive squares in only one way, i.e., 51208336 + 68121 = 7156^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 51276457 - 2¹¹ = 51274409 is a prime.

It is not a weakly prime, because it can be changed into another prime (51276157) 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, 25638228 + 25638229.

It is an arithmetic number, because the mean of its divisors is an integer number (25638229).

Almost surely, 2^51276457 is an apocalyptic number.

It is an amenable number.

51276457 is a deficient number, since it is larger than the sum of its proper divisors (1).

51276457 is an equidigital number, since it uses as much as digits as its factorization.

51276457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 51276457 is about 7160.7581302541. The cubic root of 51276457 is about 371.5118491137.

The spelling of 51276457 in words is "fifty-one million, two hundred seventy-six thousand, four hundred fifty-seven".