50042102251 has 2 divisors, whose sum is σ = 50042102252. Its totient is φ = 50042102250.

The previous prime is 50042102249. The next prime is 50042102263. The reversal of 50042102251 is 15220124005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50042102251 - 2¹ = 50042102249 is a prime.

Together with 50042102249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50042102221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25021051125 + 25021051126.

It is an arithmetic number, because the mean of its divisors is an integer number (25021051126).

Almost surely, 2^50042102251 is an apocalyptic number.

50042102251 is a deficient number, since it is larger than the sum of its proper divisors (1).

50042102251 is an equidigital number, since it uses as much as digits as its factorization.

50042102251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 50042102251 its reverse (15220124005), we get a palindrome (65262226256).

The spelling of 50042102251 in words is "fifty billion, forty-two million, one hundred two thousand, two hundred fifty-one".