50140165 has 4 divisors (see below), whose sum is σ = 60168204. Its totient is φ = 40112128.

The previous prime is 50140163. The next prime is 50140199. The reversal of 50140165 is 56104105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56104105 = 5 ⋅11220821.

It can be written as a sum of positive squares in 2 ways, for example, as 31069476 + 19070689 = 5574^2 + 4367^2 .

It is a cyclic number.

It is not a de Polignac number, because 50140165 - 2¹ = 50140163 is a prime.

It is a super-2 number, since 2×50140165² = 5028072292454450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50140163) 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, 5014012 + ... + 5014021.

It is an arithmetic number, because the mean of its divisors is an integer number (15042051).

Almost surely, 2^50140165 is an apocalyptic number.

It is an amenable number.

50140165 is a deficient number, since it is larger than the sum of its proper divisors (10028039).

50140165 is a wasteful number, since it uses less digits than its factorization.

50140165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028038.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 50140165 is about 7080.9720377926. The cubic root of 50140165 is about 368.7470768704.

It can be divided in two parts, 50140 and 165, that added together give a palindrome (50305).

The spelling of 50140165 in words is "fifty million, one hundred forty thousand, one hundred sixty-five".