50013541221 has 32 divisors (see below), whose sum is σ = 80718052608. Its totient is φ = 26890060800.

The previous prime is 50013541181. The next prime is 50013541223. The reversal of 50013541221 is 12214531005.

It is a happy number.

It is not a de Polignac number, because 50013541221 - 2¹⁷ = 50013410149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50013541191 and 50013541200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50013541223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1302331 + ... + 1340183.

It is an arithmetic number, because the mean of its divisors is an integer number (2522439144).

Almost surely, 2^50013541221 is an apocalyptic number.

50013541221 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

50013541221 is a deficient number, since it is larger than the sum of its proper divisors (30704511387).

50013541221 is a wasteful number, since it uses less digits than its factorization.

50013541221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41581.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 50013541221 in words is "fifty billion, thirteen million, five hundred forty-one thousand, two hundred twenty-one".