50504921289 has 27 divisors (see below), whose sum is σ = 76284686023. Its totient is φ = 32196148512.

The previous prime is 50504921287. The next prime is 50504921293. The reversal of 50504921289 is 98212940505.

It is a happy number.

The square root of 50504921289 is 224733.

It is a perfect power (a square), and thus also a powerful number.

50504921289 is a `hidden beast` number, since 50 + 504 + 9 + 2 + 12 + 89 = 666.

50504921289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43278561225 + 7226360064 = 208035^2 + 85008^2 .

It is not a de Polignac number, because 50504921289 - 2¹ = 50504921287 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50504921281) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15504949 + ... + 15508205.

Almost surely, 2^50504921289 is an apocalyptic number.

50504921289 is the 224733-rd square number.

50504921289 is the 112367-th centered octagonal number.

It is an amenable number.

50504921289 is a deficient number, since it is larger than the sum of its proper divisors (25779764734).

50504921289 is an frugal number, since it uses more digits than its factorization.

50504921289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 50504921289 in words is "fifty billion, five hundred four million, nine hundred twenty-one thousand, two hundred eighty-nine".