205203022425 has 108 divisors (see below), whose sum is σ = 410724454140. Its totient is φ = 97581957120.

The previous prime is 205203022369. The next prime is 205203022441. The reversal of 205203022425 is 524220302502.

205203022425 is a `hidden beast` number, since 205 + 2 + 0 + 30 + 2 + 2 + 425 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 838449936 + 204364572489 = 28956^2 + 452067^2 .

It is not a de Polignac number, because 205203022425 - 2⁸ = 205203022169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1306521 + ... + 1455129.

It is an arithmetic number, because the mean of its divisors is an integer number (3803004205).

Almost surely, 2^205203022425 is an apocalyptic number.

205203022425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205203022425 is an abundant number, since it is smaller than the sum of its proper divisors (205521431715).

205203022425 is a wasteful number, since it uses less digits than its factorization.

205203022425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148680 (or 148653 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 205203022425 its reverse (524220302502), we get a palindrome (729423324927).

The spelling of 205203022425 in words is "two hundred five billion, two hundred three million, twenty-two thousand, four hundred twenty-five".