2505515 has 4 divisors (see below), whose sum is σ = 3006624. Its totient is φ = 2004408.

The previous prime is 2505499. The next prime is 2505527. The reversal of 2505515 is 5155052.

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 2505515 - 2⁴ = 2505499 is a prime.

It is a Duffinian 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, 250547 + ... + 250556.

It is an arithmetic number, because the mean of its divisors is an integer number (751656).

2^2505515 is an apocalyptic number.

2505515 is a deficient number, since it is larger than the sum of its proper divisors (501109).

2505515 is an equidigital number, since it uses as much as digits as its factorization.

2505515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501108.

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 2505515 is about 1582.8818654593. The cubic root of 2505515 is about 135.8206076209.

The spelling of 2505515 in words is "two million, five hundred five thousand, five hundred fifteen".