2025564 has 48 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 626560.

The previous prime is 2025557. The next prime is 2025577. The reversal of 2025564 is 4655202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11227 + ... + 11405.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^2025564 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 2025564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160).

2025564 is an abundant number, since it is smaller than the sum of its proper divisors (3054756).

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

2025564 is a wasteful number, since it uses less digits than its factorization.

2025564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 248 counting only the distinct ones).

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

The square root of 2025564 is about 1423.2231026793. The cubic root of 2025564 is about 126.5266442858.

The spelling of 2025564 in words is "two million, twenty-five thousand, five hundred sixty-four".