205250424256 has 112 divisors (see below), whose sum is σ = 438273821952. Its totient is φ = 95019724800.

The previous prime is 205250424221. The next prime is 205250424259. The reversal of 205250424256 is 652424052502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205250424259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75154411 + ... + 75157141.

Almost surely, 2^205250424256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205250424256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219136910976).

205250424256 is an abundant number, since it is smaller than the sum of its proper divisors (233023397696).

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

205250424256 is a wasteful number, since it uses less digits than its factorization.

205250424256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858 (or 3848 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 205250424256 its reverse (652424052502), we get a palindrome (857674476758).

The spelling of 205250424256 in words is "two hundred five billion, two hundred fifty million, four hundred twenty-four thousand, two hundred fifty-six".