2025664 has 28 divisors (see below), whose sum is σ = 4153408. Its totient is φ = 979200.

The previous prime is 2025659. The next prime is 2025671. The reversal of 2025664 is 4665202.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1474 + ... + 2494.

It is an arithmetic number, because the mean of its divisors is an integer number (148336).

2^2025664 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 2025664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2076704).

2025664 is an abundant number, since it is smaller than the sum of its proper divisors (2127744).

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

2025664 is a wasteful number, since it uses less digits than its factorization.

2025664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2025664 is about 1423.2582337721. The cubic root of 2025664 is about 126.5287264147.

The spelling of 2025664 in words is "two million, twenty-five thousand, six hundred sixty-four".