204513125 has 40 divisors (see below), whose sum is σ = 273962304. Its totient is φ = 152240000.

The previous prime is 204513109. The next prime is 204513137. The reversal of 204513125 is 521315402.

204513125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204513125 - 2⁴ = 204513109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204513125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 589202 + ... + 589548.

Almost surely, 2^204513125 is an apocalyptic number.

204513125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204513125 is a deficient number, since it is larger than the sum of its proper divisors (69449179).

204513125 is an equidigital number, since it uses as much as digits as its factorization.

204513125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 204513125 is about 14300.8085435754. The cubic root of 204513125 is about 589.1696881192.

Adding to 204513125 its reverse (521315402), we get a palindrome (725828527).

The spelling of 204513125 in words is "two hundred four million, five hundred thirteen thousand, one hundred twenty-five".