205550325 has 48 divisors (see below), whose sum is σ = 383011200. Its totient is φ = 108057600.

The previous prime is 205550309. The next prime is 205550327. The reversal of 205550325 is 523055502.

It is not a de Polignac number, because 205550325 - 2⁴ = 205550309 is a prime.

It is a super-2 number, since 2×205550325² = 84501872215211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205550327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45781 + ... + 50069.

It is an arithmetic number, because the mean of its divisors is an integer number (7979400).

Almost surely, 2^205550325 is an apocalyptic number.

205550325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205550325 is a deficient number, since it is larger than the sum of its proper divisors (177460875).

205550325 is a wasteful number, since it uses less digits than its factorization.

205550325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379 (or 4368 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 205550325 is about 14337.0263653242. The cubic root of 205550325 is about 590.1640116661.

The spelling of 205550325 in words is "two hundred five million, five hundred fifty thousand, three hundred twenty-five".