205125822 has 96 divisors (see below), whose sum is σ = 522602496. Its totient is φ = 57499200.

The previous prime is 205125773. The next prime is 205125827. The reversal of 205125822 is 228521502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205125827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140448 + ... + 141900.

It is an arithmetic number, because the mean of its divisors is an integer number (5443776).

Almost surely, 2^205125822 is an apocalyptic number.

205125822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 205125822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261301248).

205125822 is an abundant number, since it is smaller than the sum of its proper divisors (317476674).

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

205125822 is a wasteful number, since it uses less digits than its factorization.

205125822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 205125822 is about 14322.2142841112. The cubic root of 205125822 is about 589.7574623143.

The spelling of 205125822 in words is "two hundred five million, one hundred twenty-five thousand, eight hundred twenty-two".