2565304 has 32 divisors (see below), whose sum is σ = 5788800. Its totient is φ = 1041120.

The previous prime is 2565289. The next prime is 2565319. The reversal of 2565304 is 4035652.

It is an interprime number because it is at equal distance from previous prime (2565289) and next prime (2565319).

It is a super-2 number, since 2×2565304² = 13161569224832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142 + ... + 2269.

It is an arithmetic number, because the mean of its divisors is an integer number (180900).

2^2565304 is an apocalyptic number.

It is an amenable number.

2565304 is an abundant number, since it is smaller than the sum of its proper divisors (3223496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565304 is a wasteful number, since it uses less digits than its factorization.

2565304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443 (or 2439 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2565304 is about 1601.6566423550. The cubic root of 2565304 is about 136.8924867326.

The spelling of 2565304 in words is "two million, five hundred sixty-five thousand, three hundred four".