50722161 has 16 divisors (see below), whose sum is σ = 77405184. Its totient is φ = 28941264.

The previous prime is 50722159. The next prime is 50722193. The reversal of 50722161 is 16122705.

It is not a de Polignac number, because 50722161 - 2¹ = 50722159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50722121) 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, 17716 + ... + 20378.

It is an arithmetic number, because the mean of its divisors is an integer number (4837824).

Almost surely, 2^50722161 is an apocalyptic number.

It is an amenable number.

50722161 is a deficient number, since it is larger than the sum of its proper divisors (26683023).

50722161 is a wasteful number, since it uses less digits than its factorization.

50722161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 50722161 is about 7121.9492416051. The cubic root of 50722161 is about 370.1683212726.

Adding to 50722161 its reverse (16122705), we get a palindrome (66844866).

The spelling of 50722161 in words is "fifty million, seven hundred twenty-two thousand, one hundred sixty-one".