205461925 has 24 divisors (see below), whose sum is σ = 263570432. Its totient is φ = 158760000.

The previous prime is 205461923. The next prime is 205461941. The reversal of 205461925 is 529164502.

It is a happy number.

It is not a de Polignac number, because 205461925 - 2¹ = 205461923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205461923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138940 + ... + 140410.

Almost surely, 2^205461925 is an apocalyptic number.

205461925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205461925 is a deficient number, since it is larger than the sum of its proper divisors (58108507).

205461925 is a wasteful number, since it uses less digits than its factorization.

205461925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1664 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 205461925 is about 14333.9431071844. The cubic root of 205461925 is about 590.0793965735.

The spelling of 205461925 in words is "two hundred five million, four hundred sixty-one thousand, nine hundred twenty-five".