50550531553 has 4 divisors (see below), whose sum is σ = 50553436180. Its totient is φ = 50547626928.

The previous prime is 50550531547. The next prime is 50550531587. The reversal of 50550531553 is 35513505505.

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 20895280704 + 29655250849 = 144552^2 + 172207^2 .

It is a cyclic number.

It is not a de Polignac number, because 50550531553 - 2²¹ = 50548434401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50550531503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426050 + ... + 1461067.

It is an arithmetic number, because the mean of its divisors is an integer number (12638359045).

Almost surely, 2^50550531553 is an apocalyptic number.

It is an amenable number.

50550531553 is a deficient number, since it is larger than the sum of its proper divisors (2904627).

50550531553 is a wasteful number, since it uses less digits than its factorization.

50550531553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904626.

The product of its (nonzero) digits is 140625, while the sum is 37.

The spelling of 50550531553 in words is "fifty billion, five hundred fifty million, five hundred thirty-one thousand, five hundred fifty-three".