204423125025 has 48 divisors (see below), whose sum is σ = 396701922944. Its totient is φ = 90924871680.

The previous prime is 204423124991. The next prime is 204423125029. The reversal of 204423125025 is 520521324402.

It is not a de Polignac number, because 204423125025 - 2²⁷ = 204288907297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204423124983 and 204423125001.

It is not an unprimeable number, because it can be changed into a prime (204423125029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5242432 + ... + 5281281.

Almost surely, 2^204423125025 is an apocalyptic number.

204423125025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204423125025 is a deficient number, since it is larger than the sum of its proper divisors (192278797919).

204423125025 is a wasteful number, since it uses less digits than its factorization.

204423125025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523770 (or 10523765 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 204423125025 its reverse (520521324402), we get a palindrome (724944449427).

The spelling of 204423125025 in words is "two hundred four billion, four hundred twenty-three million, one hundred twenty-five thousand, twenty-five".