2602565 has 32 divisors (see below), whose sum is σ = 3856896. Its totient is φ = 1647360.

The previous prime is 2602541. The next prime is 2602571. The reversal of 2602565 is 5652062.

It is a happy number.

It is not a de Polignac number, because 2602565 - 2¹⁸ = 2340421 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 42635 + ... + 42695.

It is an arithmetic number, because the mean of its divisors is an integer number (120528).

2^2602565 is an apocalyptic number.

It is an amenable number.

2602565 is a deficient number, since it is larger than the sum of its proper divisors (1254331).

2602565 is a wasteful number, since it uses less digits than its factorization.

2602565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2602565 is about 1613.2467263255. The cubic root of 2602565 is about 137.5520904564.

The spelling of 2602565 in words is "two million, six hundred two thousand, five hundred sixty-five".