50161161 has 16 divisors (see below), whose sum is σ = 68402880. Its totient is φ = 32685120.

The previous prime is 50161157. The next prime is 50161187. The reversal of 50161161 is 16116105.

It is not a de Polignac number, because 50161161 - 2² = 50161157 is a prime.

It is a super-2 number, since 2×50161161² = 5032284145735842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50161061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61446 + ... + 62256.

It is an arithmetic number, because the mean of its divisors is an integer number (4275180).

Almost surely, 2^50161161 is an apocalyptic number.

It is an amenable number.

50161161 is a deficient number, since it is larger than the sum of its proper divisors (18241719).

50161161 is a wasteful number, since it uses less digits than its factorization.

50161161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 50161161 is about 7082.4544474356. The cubic root of 50161161 is about 368.7985401581.

Adding to 50161161 its reverse (16116105), we get a palindrome (66277266).

The spelling of 50161161 in words is "fifty million, one hundred sixty-one thousand, one hundred sixty-one".