1825885 has 8 divisors (see below), whose sum is σ = 2320056. Its totient is φ = 1374720.

The previous prime is 1825883. The next prime is 1825891. The reversal of 1825885 is 5885281.

It can be written as a sum of positive squares in 4 ways, for example, as 558009 + 1267876 = 747^2 + 1126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1825885 - 2¹ = 1825883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10656 + ... + 10825.

It is an arithmetic number, because the mean of its divisors is an integer number (290007).

2^1825885 is an apocalyptic number.

It is an amenable number.

1825885 is a deficient number, since it is larger than the sum of its proper divisors (494171).

1825885 is a wasteful number, since it uses less digits than its factorization.

1825885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21503.

The product of its digits is 25600, while the sum is 37.

The square root of 1825885 is about 1351.2531221056. The cubic root of 1825885 is about 122.2243698735.

The spelling of 1825885 in words is "one million, eight hundred twenty-five thousand, eight hundred eighty-five".