2565002515 has 8 divisors (see below), whose sum is σ = 3085681248. Its totient is φ = 2046883200.

The previous prime is 2565002509. The next prime is 2565002519. The reversal of 2565002515 is 5152005652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2565002515 - 2³ = 2565002507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2565002519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637647 + ... + 641656.

It is an arithmetic number, because the mean of its divisors is an integer number (385710156).

Almost surely, 2^2565002515 is an apocalyptic number.

2565002515 is a deficient number, since it is larger than the sum of its proper divisors (520678733).

2565002515 is a wasteful number, since it uses less digits than its factorization.

2565002515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279709.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 2565002515 is about 50645.8538776868. The cubic root of 2565002515 is about 1368.8712380117.

The spelling of 2565002515 in words is "two billion, five hundred sixty-five million, two thousand, five hundred fifteen".