205410425 has 24 divisors (see below), whose sum is σ = 292496160. Its totient is φ = 141523200.

The previous prime is 205410407. The next prime is 205410431. The reversal of 205410425 is 524014502.

It is a happy number.

205410425 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 205410425 - 2²⁶ = 138301561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205410425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14432 + ... + 24881.

It is an arithmetic number, because the mean of its divisors is an integer number (12187340).

Almost surely, 2^205410425 is an apocalyptic number.

205410425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205410425 is a deficient number, since it is larger than the sum of its proper divisors (87085735).

205410425 is a wasteful number, since it uses less digits than its factorization.

205410425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39353 (or 39348 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 205410425 is about 14332.1465593958. The cubic root of 205410425 is about 590.0300903930.

Adding to 205410425 its reverse (524014502), we get a palindrome (729424927).

The spelling of 205410425 in words is "two hundred five million, four hundred ten thousand, four hundred twenty-five".