2516165 has 4 divisors (see below), whose sum is σ = 3019404. Its totient is φ = 2012928.

The previous prime is 2516123. The next prime is 2516197. The reversal of 2516165 is 5616152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1592644 + 923521 = 1262^2 + 961^2 .

It is a cyclic number.

It is not a de Polignac number, because 2516165 - 2¹⁴ = 2499781 is a prime.

It is a super-3 number, since 3×2516165³ = 47790173334656376375, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251612 + ... + 251621.

It is an arithmetic number, because the mean of its divisors is an integer number (754851).

2^2516165 is an apocalyptic number.

It is an amenable number.

2516165 is a deficient number, since it is larger than the sum of its proper divisors (503239).

2516165 is an equidigital number, since it uses as much as digits as its factorization.

2516165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503238.

The product of its digits is 1800, while the sum is 26.

The square root of 2516165 is about 1586.2424152695. The cubic root of 2516165 is about 136.0127763372.

The spelling of 2516165 in words is "two million, five hundred sixteen thousand, one hundred sixty-five".