50029601221 has 4 divisors (see below), whose sum is σ = 50045224032. Its totient is φ = 50013978412.

The previous prime is 50029601177. The next prime is 50029601249. The reversal of 50029601221 is 12210692005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50029601221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50029601221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50029601521) 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, 7806601 + ... + 7813006.

It is an arithmetic number, because the mean of its divisors is an integer number (12511306008).

Almost surely, 2^50029601221 is an apocalyptic number.

It is an amenable number.

50029601221 is a deficient number, since it is larger than the sum of its proper divisors (15622811).

50029601221 is a wasteful number, since it uses less digits than its factorization.

50029601221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15622810.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 50029601221 in words is "fifty billion, twenty-nine million, six hundred one thousand, two hundred twenty-one".