205525340 has 12 divisors (see below), whose sum is σ = 431603256. Its totient is φ = 82210128.

The previous prime is 205525301. The next prime is 205525351. The reversal of 205525340 is 43525502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5138114 + ... + 5138153.

It is an arithmetic number, because the mean of its divisors is an integer number (35966938).

Almost surely, 2^205525340 is an apocalyptic number.

205525340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205525340 is an abundant number, since it is smaller than the sum of its proper divisors (226077916).

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

205525340 is a wasteful number, since it uses less digits than its factorization.

205525340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276276 (or 10276274 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 205525340 is about 14336.1549935818. The cubic root of 205525340 is about 590.1400988760.

The spelling of 205525340 in words is "two hundred five million, five hundred twenty-five thousand, three hundred forty".