51442042151 has 2 divisors, whose sum is σ = 51442042152. Its totient is φ = 51442042150.

The previous prime is 51442042111. The next prime is 51442042153. The reversal of 51442042151 is 15124024415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51442042151 is a prime.

Together with 51442042153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51442042153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25721021075 + 25721021076.

It is an arithmetic number, because the mean of its divisors is an integer number (25721021076).

Almost surely, 2^51442042151 is an apocalyptic number.

51442042151 is a deficient number, since it is larger than the sum of its proper divisors (1).

51442042151 is an equidigital number, since it uses as much as digits as its factorization.

51442042151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 51442042151 its reverse (15124024415), we get a palindrome (66566066566).

The spelling of 51442042151 in words is "fifty-one billion, four hundred forty-two million, forty-two thousand, one hundred fifty-one".