2566725 has 24 divisors (see below), whose sum is σ = 4850880. Its totient is φ = 1173120.

The previous prime is 2566709. The next prime is 2566747. The reversal of 2566725 is 5276652.

It is not a de Polignac number, because 2566725 - 2⁴ = 2566709 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 5 + 6⁶ + 6⁸ + 7⁷ + 2¹⁰ + 5⁶ .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1920 + ... + 2969.

It is an arithmetic number, because the mean of its divisors is an integer number (202120).

2^2566725 is an apocalyptic number.

2566725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2566725 is a deficient number, since it is larger than the sum of its proper divisors (2284155).

2566725 is a wasteful number, since it uses less digits than its factorization.

2566725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909 (or 4904 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 2566725 is about 1602.1001841333. The cubic root of 2566725 is about 136.9177583725.

The spelling of 2566725 in words is "two million, five hundred sixty-six thousand, seven hundred twenty-five".