20204125 has 32 divisors (see below), whose sum is σ = 27256320. Its totient is φ = 14904000.

The previous prime is 20204117. The next prime is 20204147. The reversal of 20204125 is 52140202.

It is not a de Polignac number, because 20204125 - 2³ = 20204117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20204099 and 20204108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111535 + ... + 111715.

It is an arithmetic number, because the mean of its divisors is an integer number (851760).

Almost surely, 2^20204125 is an apocalyptic number.

20204125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20204125 is a deficient number, since it is larger than the sum of its proper divisors (7052195).

20204125 is a wasteful number, since it uses less digits than its factorization.

20204125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20204125 is about 4494.8998876504. The cubic root of 20204125 is about 272.3621051331.

Adding to 20204125 its reverse (52140202), we get a palindrome (72344327).

The spelling of 20204125 in words is "twenty million, two hundred four thousand, one hundred twenty-five".