2595645 has 80 divisors (see below), whose sum is σ = 5488560. Its totient is φ = 1161216.

The previous prime is 2595643. The next prime is 2595653. The reversal of 2595645 is 5465952.

2595645 is a `hidden beast` number, since 2 + 5 + 9 + 5 + 645 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 29241 + 2566404 = 171^2 + 1602^2 .

It is not a de Polignac number, because 2595645 - 2¹ = 2595643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2595641) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 89491 + ... + 89519.

It is an arithmetic number, because the mean of its divisors is an integer number (68607).

2^2595645 is an apocalyptic number.

It is an amenable number.

2595645 is an abundant number, since it is smaller than the sum of its proper divisors (2892915).

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

2595645 is a wasteful number, since it uses less digits than its factorization.

2595645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 67 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 2595645 is about 1611.1005555210. The cubic root of 2595645 is about 137.4300691232.

It can be divided in two parts, 2595 and 645, that added together give a triangular number (3240 = T₈₀).

The spelling of 2595645 in words is "two million, five hundred ninety-five thousand, six hundred forty-five".