50040121237 has 2 divisors, whose sum is σ = 50040121238. Its totient is φ = 50040121236.

The previous prime is 50040121171. The next prime is 50040121247. The reversal of 50040121237 is 73212104005.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33308440036 + 16731681201 = 182506^2 + 129351^2 .

It is a cyclic number.

It is not a de Polignac number, because 50040121237 - 2³⁵ = 15680382869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50040121247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25020060618 + 25020060619.

It is an arithmetic number, because the mean of its divisors is an integer number (25020060619).

Almost surely, 2^50040121237 is an apocalyptic number.

It is an amenable number.

50040121237 is a deficient number, since it is larger than the sum of its proper divisors (1).

50040121237 is an equidigital number, since it uses as much as digits as its factorization.

50040121237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The spelling of 50040121237 in words is "fifty billion, forty million, one hundred twenty-one thousand, two hundred thirty-seven".