50022161 has 4 divisors (see below), whose sum is σ = 57168192. Its totient is φ = 42876132.

The previous prime is 50022157. The next prime is 50022163. The reversal of 50022161 is 16122005.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16122005 = 5 ⋅3224401.

It is a cyclic number.

It is not a de Polignac number, because 50022161 - 2² = 50022157 is a prime.

It is a super-2 number, since 2×50022161² = 5004433182219842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50022163) 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, 3573005 + ... + 3573018.

It is an arithmetic number, because the mean of its divisors is an integer number (14292048).

Almost surely, 2^50022161 is an apocalyptic number.

It is an amenable number.

50022161 is a deficient number, since it is larger than the sum of its proper divisors (7146031).

50022161 is an equidigital number, since it uses as much as digits as its factorization.

50022161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146030.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 50022161 is about 7072.6346576082. The cubic root of 50022161 is about 368.4575697062.

Adding to 50022161 its reverse (16122005), we get a palindrome (66144166).

The spelling of 50022161 in words is "fifty million, twenty-two thousand, one hundred sixty-one".