1804525 has 24 divisors (see below), whose sum is σ = 2455200. Its totient is φ = 1310400.

The previous prime is 1804513. The next prime is 1804529. The reversal of 1804525 is 5254081.

It is not a de Polignac number, because 1804525 - 2⁵ = 1804493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1804525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13710 + ... + 13840.

It is an arithmetic number, because the mean of its divisors is an integer number (102300).

2^1804525 is an apocalyptic number.

It is an amenable number.

1804525 is a deficient number, since it is larger than the sum of its proper divisors (650675).

1804525 is a wasteful number, since it uses less digits than its factorization.

1804525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1804525 is about 1343.3260959276. The cubic root of 1804525 is about 121.7458878144.

The spelling of 1804525 in words is "one million, eight hundred four thousand, five hundred twenty-five".