50550065149 has 4 divisors (see below), whose sum is σ = 51916283164. Its totient is φ = 49183847136.

The previous prime is 50550065119. The next prime is 50550065161. The reversal of 50550065149 is 94156005505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29034456025 + 21515609124 = 170395^2 + 146682^2 .

It is a cyclic number.

It is not a de Polignac number, because 50550065149 - 2⁷ = 50550065021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50550065119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683108952 + ... + 683109025.

It is an arithmetic number, because the mean of its divisors is an integer number (12979070791).

Almost surely, 2^50550065149 is an apocalyptic number.

It is an amenable number.

50550065149 is a deficient number, since it is larger than the sum of its proper divisors (1366218015).

50550065149 is a wasteful number, since it uses less digits than its factorization.

50550065149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366218014.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 50550065149 in words is "fifty billion, five hundred fifty million, sixty-five thousand, one hundred forty-nine".