1585025 has 12 divisors (see below), whose sum is σ = 2117052. Its totient is φ = 1170240.

The previous prime is 1585021. The next prime is 1585027. The reversal of 1585025 is 5205851.

It can be written as a sum of positive squares in 6 ways, for example, as 303601 + 1281424 = 551^2 + 1132^2 .

It is not a de Polignac number, because 1585025 - 2² = 1585021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1584985 and 1585003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1585021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2114 + ... + 2763.

It is an arithmetic number, because the mean of its divisors is an integer number (176421).

2^1585025 is an apocalyptic number.

It is an amenable number.

1585025 is a deficient number, since it is larger than the sum of its proper divisors (532027).

1585025 is a wasteful number, since it uses less digits than its factorization.

1585025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900 (or 4895 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1585025 is about 1258.9777599307. The cubic root of 1585025 is about 116.5946721349.

The spelling of 1585025 in words is "one million, five hundred eighty-five thousand, twenty-five".