1995825 has 48 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 929280.

The previous prime is 1995797. The next prime is 1995827. The reversal of 1995825 is 5285991.

It is not a de Polignac number, because 1995825 - 2¹² = 1991729 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1995827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22381 + ... + 22469.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2^1995825 is an apocalyptic number.

1995825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1995825 is a deficient number, since it is larger than the sum of its proper divisors (1753935).

1995825 is a wasteful number, since it uses less digits than its factorization.

1995825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 133 counting only the distinct ones).

The product of its digits is 32400, while the sum is 39.

The square root of 1995825 is about 1412.7367058302. The cubic root of 1995825 is about 125.9043744089.

The spelling of 1995825 in words is "one million, nine hundred ninety-five thousand, eight hundred twenty-five".