51344087 has 2 divisors, whose sum is σ = 51344088. Its totient is φ = 51344086.

The previous prime is 51344081. The next prime is 51344129. The reversal of 51344087 is 78044315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51344087 - 2⁴ = 51344071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51344081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672043 + 25672044.

It is an arithmetic number, because the mean of its divisors is an integer number (25672044).

Almost surely, 2^51344087 is an apocalyptic number.

51344087 is a deficient number, since it is larger than the sum of its proper divisors (1).

51344087 is an equidigital number, since it uses as much as digits as its factorization.

51344087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 51344087 is about 7165.4788395473. The cubic root of 51344087 is about 371.6751099273.

The spelling of 51344087 in words is "fifty-one million, three hundred forty-four thousand, eighty-seven".