1825500 has 48 divisors (see below), whose sum is σ = 5320224. Its totient is φ = 486400.

The previous prime is 1825493. The next prime is 1825513. The reversal of 1825500 is 55281.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892 + ... + 2108.

It is an arithmetic number, because the mean of its divisors is an integer number (110838).

2^1825500 is an apocalyptic number.

1825500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1825500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2660112).

1825500 is an abundant number, since it is smaller than the sum of its proper divisors (3494724).

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

1825500 is a wasteful number, since it uses less digits than its factorization.

1825500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1825500 is about 1351.1106542397. The cubic root of 1825500 is about 122.2157786624.

The spelling of 1825500 in words is "one million, eight hundred twenty-five thousand, five hundred".