2615565 has 16 divisors (see below), whose sum is σ = 4220928. Its totient is φ = 1382976.

The previous prime is 2615551. The next prime is 2615581. The reversal of 2615565 is 5655162.

It is not a de Polignac number, because 2615565 - 2⁵ = 2615533 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (263808).

2^2615565 is an apocalyptic number.

It is an amenable number.

2615565 is a deficient number, since it is larger than the sum of its proper divisors (1605363).

2615565 is a wasteful number, since it uses less digits than its factorization.

2615565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508.

The product of its digits is 9000, while the sum is 30.

The square root of 2615565 is about 1617.2708493014. The cubic root of 2615565 is about 137.7807377144.

The spelling of 2615565 in words is "two million, six hundred fifteen thousand, five hundred sixty-five".