50921850321 has 12 divisors (see below), whose sum is σ = 73555742260. Its totient is φ = 33946996320.

The previous prime is 50921850319. The next prime is 50921850341. The reversal of 50921850321 is 12305812905.

50921850321 is a `hidden beast` number, since 50 + 92 + 18 + 503 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26916996096 + 24004854225 = 164064^2 + 154935^2 .

It is not a de Polignac number, because 50921850321 - 2¹ = 50921850319 is a prime.

It is a super-2 number, since 2×50921850321² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50921850341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602415 + ... + 681723.

Almost surely, 2^50921850321 is an apocalyptic number.

It is an amenable number.

50921850321 is a deficient number, since it is larger than the sum of its proper divisors (22633891939).

50921850321 is a wasteful number, since it uses less digits than its factorization.

50921850321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150656 (or 150653 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 50921850321 in words is "fifty billion, nine hundred twenty-one million, eight hundred fifty thousand, three hundred twenty-one".