2563825 has 12 divisors (see below), whose sum is σ = 3468528. Its totient is φ = 1864400.

The previous prime is 2563819. The next prime is 2563837. The reversal of 2563825 is 5283652.

It is a happy number.

It is not a de Polignac number, because 2563825 - 2²¹ = 466673 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹³ + 5⁷ + 6 + 3⁴ + 8 + 2¹⁹ + 5⁹ .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4387 + ... + 4936.

It is an arithmetic number, because the mean of its divisors is an integer number (289044).

2^2563825 is an apocalyptic number.

2563825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2563825 is a deficient number, since it is larger than the sum of its proper divisors (904703).

2563825 is a wasteful number, since it uses less digits than its factorization.

2563825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9344 (or 9339 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 2563825 is about 1601.1948663420. The cubic root of 2563825 is about 136.8661736835.

The spelling of 2563825 in words is "two million, five hundred sixty-three thousand, eight hundred twenty-five".