204045305213525 has 24 divisors (see below), whose sum is σ = 253709003608320. Its totient is φ = 162789272170560.

The previous prime is 204045305213513. The next prime is 204045305213531. The reversal of 204045305213525 is 525312503540402.

It is a de Polignac number, because none of the positive numbers 2^k-204045305213525 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294321007 + ... + 1294478643.

It is an arithmetic number, because the mean of its divisors is an integer number (10571208483680).

Almost surely, 2^{204045305213525} is an apocalyptic number.

204045305213525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204045305213525 is a deficient number, since it is larger than the sum of its proper divisors (49663698394795).

204045305213525 is a wasteful number, since it uses less digits than its factorization.

204045305213525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299093 (or 299088 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 41.

Adding to 204045305213525 its reverse (525312503540402), we get a palindrome (729357808753927).

The spelling of 204045305213525 in words is "two hundred four trillion, forty-five billion, three hundred five million, two hundred thirteen thousand, five hundred twenty-five".