1825506 has 24 divisors (see below), whose sum is σ = 4063644. Its totient is φ = 591840.

The previous prime is 1825493. The next prime is 1825513. The reversal of 1825506 is 6055281.

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 27225 = 1341^2 + 165^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1825506.

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 11 ways as a sum of consecutive naturals, for example, 705 + ... + 2036.

2^1825506 is an apocalyptic number.

1825506 is an abundant number, since it is smaller than the sum of its proper divisors (2238138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1825506 is a wasteful number, since it uses less digits than its factorization.

1825506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1825506 is about 1351.1128746334. The cubic root of 1825506 is about 122.2159125607.

The spelling of 1825506 in words is "one million, eight hundred twenty-five thousand, five hundred six".