2587825 has 12 divisors (see below), whose sum is σ = 3398220. Its totient is φ = 1948160.

The previous prime is 2587801. The next prime is 2587829. The reversal of 2587825 is 5287852.

It can be written as a sum of positive squares in 6 ways, for example, as 50176 + 2537649 = 224^2 + 1593^2 .

It is not a de Polignac number, because 2587825 - 2¹¹ = 2585777 is a prime.

It is an Ulam number.

2587825 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2587829) by changing a digit.

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, 2620 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (283185).

2^2587825 is an apocalyptic number.

2587825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2587825 is a deficient number, since it is larger than the sum of its proper divisors (810395).

2587825 is a wasteful number, since it uses less digits than its factorization.

2587825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116 (or 6111 counting only the distinct ones).

The product of its digits is 44800, while the sum is 37.

The square root of 2587825 is about 1608.6718123968. The cubic root of 2587825 is about 137.2919166644.

The spelling of 2587825 in words is "two million, five hundred eighty-seven thousand, eight hundred twenty-five".