2564025 has 24 divisors (see below), whose sum is σ = 4490784. Its totient is φ = 1286400.

The previous prime is 2564011. The next prime is 2564027. The reversal of 2564025 is 5204652.

It is a de Polignac number, because none of the positive numbers 2^k-2564025 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2563986 and 2564004.

It is not an unprimeable number, because it can be changed into a prime (2564027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270 + ... + 2280.

It is an arithmetic number, because the mean of its divisors is an integer number (187116).

2^2564025 is an apocalyptic number.

2564025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2564025 is a deficient number, since it is larger than the sum of its proper divisors (1926759).

2564025 is a wasteful number, since it uses less digits than its factorization.

2564025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2036 counting only the distinct ones).

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

The square root of 2564025 is about 1601.2573184844. The cubic root of 2564025 is about 136.8697324968.

Adding to 2564025 its reverse (5204652), we get a palindrome (7768677).

The spelling of 2564025 in words is "two million, five hundred sixty-four thousand, twenty-five".