1825530 has 32 divisors (see below), whose sum is σ = 5007744. Its totient is φ = 417216.

The previous prime is 1825517. The next prime is 1825531. The reversal of 1825530 is 355281.

It is a self number, because there is not a number n which added to its sum of digits gives 1825530.

It is not an unprimeable number, because it can be changed into a prime (1825531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4137 + ... + 4556.

It is an arithmetic number, because the mean of its divisors is an integer number (156492).

2^1825530 is an apocalyptic number.

1825530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1825530 is an abundant number, since it is smaller than the sum of its proper divisors (3182214).

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

1825530 is a wasteful number, since it uses less digits than its factorization.

1825530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1825530 is about 1351.1217561715. The cubic root of 1825530 is about 122.2164481509.

The spelling of 1825530 in words is "one million, eight hundred twenty-five thousand, five hundred thirty".