50988155305 has 4 divisors (see below), whose sum is σ = 61185786372. Its totient is φ = 40790524240.

The previous prime is 50988155303. The next prime is 50988155333. The reversal of 50988155305 is 50355188905.

It is a happy number.

50988155305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9487539216 + 41500616089 = 97404^2 + 203717^2 .

It is not a de Polignac number, because 50988155305 - 2¹ = 50988155303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50988155303) 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, 5098815526 + ... + 5098815535.

It is an arithmetic number, because the mean of its divisors is an integer number (15296446593).

Almost surely, 2^50988155305 is an apocalyptic number.

It is an amenable number.

50988155305 is a deficient number, since it is larger than the sum of its proper divisors (10197631067).

50988155305 is a wasteful number, since it uses less digits than its factorization.

50988155305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10197631066.

The product of its (nonzero) digits is 1080000, while the sum is 49.

The spelling of 50988155305 in words is "fifty billion, nine hundred eighty-eight million, one hundred fifty-five thousand, three hundred five".