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2515 = 5503

2515 has 4 divisors (see below), whose sum is σ = 3024. Its totient is φ = 2008.

The previous prime is 2503. The next prime is 2521. The reversal of 2515 is 5152.

2515 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2515 - 29 = 2003 is a prime.

It is a Smith number, since the sum of its digits (13) 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 plaindrome in base 12.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 2495 and 2504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247 + ... + 256.

It is an arithmetic number, because the mean of its divisors is an integer number (756).

2515 is a deficient number, since it is larger than the sum of its proper divisors (509).

2515 is an equidigital number, since it uses as much as digits as its factorization.

2515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its digits is 50, while the sum is 13.

The square root of 2515 is about 50.1497756725. The cubic root of 2515 is about 13.5991781510.

Adding to 2515 its reverse (5152), we get a palindrome (7667).

It can be divided in two parts, 251 and 5, that added together give a 8-th power (256 = 28).

The spelling of 2515 in words is "two thousand, five hundred fifteen".

Divisors: 1 5 503 2515