2564562 has 96 divisors (see below), whose sum is σ = 7124544. Its totient is φ = 604800.

The previous prime is 2564561. The next prime is 2564567. The reversal of 2564562 is 2654652.

It is a d-powerful number, because it can be written as 2³ + 5⁷ + 6³ + 4⁵ + 5⁹ + 6⁵ + 2¹⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564561) 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, 42012 + ... + 42072.

It is an arithmetic number, because the mean of its divisors is an integer number (74214).

2^2564562 is an apocalyptic number.

2564562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2564562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3562272).

2564562 is an abundant number, since it is smaller than the sum of its proper divisors (4559982).

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

2564562 is a wasteful number, since it uses less digits than its factorization.

2564562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 97 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 2564562 is about 1601.4249904382. The cubic root of 2564562 is about 136.8792869949.

The spelling of 2564562 in words is "two million, five hundred sixty-four thousand, five hundred sixty-two".