51442042159 has 2 divisors, whose sum is σ = 51442042160. Its totient is φ = 51442042158.

The previous prime is 51442042153. The next prime is 51442042163. The reversal of 51442042159 is 95124024415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51442042159 - 2³ = 51442042151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51442042151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25721021079 + 25721021080.

It is an arithmetic number, because the mean of its divisors is an integer number (25721021080).

Almost surely, 2^51442042159 is an apocalyptic number.

51442042159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51442042159 is an equidigital number, since it uses as much as digits as its factorization.

51442042159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 51442042159 in words is "fifty-one billion, four hundred forty-two million, forty-two thousand, one hundred fifty-nine".