2565402 has 32 divisors (see below), whose sum is σ = 6210432. Its totient is φ = 689664.

The previous prime is 2565391. The next prime is 2565403. The reversal of 2565402 is 2045652.

It is not an unprimeable number, because it can be changed into a prime (2565403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1083 + ... + 2510.

It is an arithmetic number, because the mean of its divisors is an integer number (194076).

2^2565402 is an apocalyptic number.

2565402 is an abundant number, since it is smaller than the sum of its proper divisors (3645030).

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

2565402 is a wasteful number, since it uses less digits than its factorization.

2565402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2565402 is about 1601.6872353865. The cubic root of 2565402 is about 136.8942299039.

The spelling of 2565402 in words is "two million, five hundred sixty-five thousand, four hundred two".