2564532 has 18 divisors (see below), whose sum is σ = 6482658. Its totient is φ = 854832.

The previous prime is 2564521. The next prime is 2564539. The reversal of 2564532 is 2354652.

It can be written as a sum of positive squares in only one way, i.e., 1572516 + 992016 = 1254^2 + 996^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2564496 and 2564505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35583 + ... + 35654.

2^2564532 is an apocalyptic number.

It is an amenable number.

2564532 is an abundant number, since it is smaller than the sum of its proper divisors (3918126).

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

2564532 is a wasteful number, since it uses less digits than its factorization.

2564532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71247 (or 71242 counting only the distinct ones).

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

The square root of 2564532 is about 1601.4156237529. The cubic root of 2564532 is about 136.8787532592.

The spelling of 2564532 in words is "two million, five hundred sixty-four thousand, five hundred thirty-two".