2565045 has 48 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 1101312.

The previous prime is 2565023. The next prime is 2565047. The reversal of 2565045 is 5405652.

2565045 is a `hidden beast` number, since 2 + 5 + 650 + 4 + 5 = 666.

It is not a de Polignac number, because 2565045 - 2⁷ = 2564917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5116 + ... + 5594.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

2^2565045 is an apocalyptic number.

It is an amenable number.

2565045 is an abundant number, since it is smaller than the sum of its proper divisors (2826315).

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

2565045 is a wasteful number, since it uses less digits than its factorization.

2565045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2565045 is about 1601.5757865303. The cubic root of 2565045 is about 136.8878795662.

The spelling of 2565045 in words is "two million, five hundred sixty-five thousand, forty-five".