204525112590 has 256 divisors, whose sum is σ = 582937344000. Its totient is φ = 51514662528.

The previous prime is 204525112579. The next prime is 204525112613. The reversal of 204525112590 is 95211525402.

204525112590 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 2 + 51 + 12 + 590 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 211504287 + ... + 211505253.

It is an arithmetic number, because the mean of its divisors is an integer number (2277099000).

Almost surely, 2^204525112590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204525112590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291468672000).

204525112590 is an abundant number, since it is smaller than the sum of its proper divisors (378412231410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204525112590 is an equidigital number, since it uses as much as digits as its factorization.

204525112590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 204525112590 its reverse (95211525402), we get a palindrome (299736637992).

The spelling of 204525112590 in words is "two hundred four billion, five hundred twenty-five million, one hundred twelve thousand, five hundred ninety".