50111111051 has 2 divisors, whose sum is σ = 50111111052. Its totient is φ = 50111111050.

The previous prime is 50111111047. The next prime is 50111111107. The reversal of 50111111051 is 15011111105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50111111051 - 2² = 50111111047 is a prime.

It is a super-2 number, since 2×50111111051² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50111111041) 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, 25055555525 + 25055555526.

It is an arithmetic number, because the mean of its divisors is an integer number (25055555526).

Almost surely, 2^50111111051 is an apocalyptic number.

50111111051 is a deficient number, since it is larger than the sum of its proper divisors (1).

50111111051 is an equidigital number, since it uses as much as digits as its factorization.

50111111051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25, while the sum is 17.

Adding to 50111111051 its reverse (15011111105), we get a palindrome (65122222156).

The spelling of 50111111051 in words is "fifty billion, one hundred eleven million, one hundred eleven thousand, fifty-one".