205152025425 has 24 divisors (see below), whose sum is σ = 340070329344. Its totient is φ = 109128720960.

The previous prime is 205152025381. The next prime is 205152025427. The reversal of 205152025425 is 524520251502.

It is a happy number.

205152025425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205152025425 - 2³³ = 196562090833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205152025427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3542242 + ... + 3599691.

It is an arithmetic number, because the mean of its divisors is an integer number (14169597056).

Almost surely, 2^205152025425 is an apocalyptic number.

205152025425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205152025425 is a deficient number, since it is larger than the sum of its proper divisors (134918303919).

205152025425 is a wasteful number, since it uses less digits than its factorization.

205152025425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7142329 (or 7142324 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 205152025425 its reverse (524520251502), we get a palindrome (729672276927).

The spelling of 205152025425 in words is "two hundred five billion, one hundred fifty-two million, twenty-five thousand, four hundred twenty-five".