50151550091 has 2 divisors, whose sum is σ = 50151550092. Its totient is φ = 50151550090.

The previous prime is 50151550019. The next prime is 50151550093. The reversal of 50151550091 is 19005515105.

Together with previous prime (50151550019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50151550091 - 2¹⁰ = 50151549067 is a prime.

Together with 50151550093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50151550093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25075775045 + 25075775046.

It is an arithmetic number, because the mean of its divisors is an integer number (25075775046).

Almost surely, 2^50151550091 is an apocalyptic number.

50151550091 is a deficient number, since it is larger than the sum of its proper divisors (1).

50151550091 is an equidigital number, since it uses as much as digits as its factorization.

50151550091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5625, while the sum is 32.

The spelling of 50151550091 in words is "fifty billion, one hundred fifty-one million, five hundred fifty thousand, ninety-one".