2566525 has 24 divisors (see below), whose sum is σ = 3515400. Its totient is φ = 1847040.

The previous prime is 2566519. The next prime is 2566549. The reversal of 2566525 is 5256652.

It can be written as a sum of positive squares in 12 ways, for example, as 1406596 + 1159929 = 1186^2 + 1077^2 .

It is not a de Polignac number, because 2566525 - 2³ = 2566517 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

Its product of digits (18000) is a multiple of the sum of its prime factors (225).

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 17151 + ... + 17299.

It is an arithmetic number, because the mean of its divisors is an integer number (146475).

2^2566525 is an apocalyptic number.

2566525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2566525 is a deficient number, since it is larger than the sum of its proper divisors (948875).

2566525 is a wasteful number, since it uses less digits than its factorization.

2566525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 220 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 2566525 is about 1602.0377648483. The cubic root of 2566525 is about 136.9142020556.

The spelling of 2566525 in words is "two million, five hundred sixty-six thousand, five hundred twenty-five".