50515 has 4 divisors (see below), whose sum is σ = 60624. Its totient is φ = 40408.

The previous prime is 50513. The next prime is 50527. The reversal of 50515 is 51505.

50515 is nontrivially palindromic in base 4.

50515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51505 = 5 ⋅10301.

It is a cyclic number.

It is not a de Polignac number, because 50515 - 2¹ = 50513 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (50513) 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, 5047 + ... + 5056.

It is an arithmetic number, because the mean of its divisors is an integer number (15156).

2⁵⁰⁵¹⁵ is an apocalyptic number.

50515 is a deficient number, since it is larger than the sum of its proper divisors (10109).

50515 is a wasteful number, since it uses less digits than its factorization.

50515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 50515 is about 224.7554226265. The cubic root of 50515 is about 36.9663682704.

Subtracting 50515 from its reverse (51505), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 50 and 515, that added together give a palindrome (565).

The spelling of 50515 in words is "fifty thousand, five hundred fifteen".