2565432 has 80 divisors (see below), whose sum is σ = 7448760. Its totient is φ = 824256.

The previous prime is 2565403. The next prime is 2565449. The reversal of 2565432 is 2345652.

2565432 is a `hidden beast` number, since 2 + 5 + 654 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2565396 and 2565405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23923 + ... + 24029.

2^2565432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2565432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3724380).

2565432 is an abundant number, since it is smaller than the sum of its proper divisors (4883328).

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

2565432 is a wasteful number, since it uses less digits than its factorization.

2565432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 149 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2565432 is about 1601.6966004834. The cubic root of 2565432 is about 136.8947635189.

The spelling of 2565432 in words is "two million, five hundred sixty-five thousand, four hundred thirty-two".