205571125 has 16 divisors (see below), whose sum is σ = 267710976. Its totient is φ = 157304400.

The previous prime is 205571101. The next prime is 205571141. The reversal of 205571125 is 521175502.

It is not a de Polignac number, because 205571125 - 2¹⁹ = 205046837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205571093 and 205571102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32877 + ... + 38626.

It is an arithmetic number, because the mean of its divisors is an integer number (16731936).

Almost surely, 2^205571125 is an apocalyptic number.

205571125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205571125 is a deficient number, since it is larger than the sum of its proper divisors (62139851).

205571125 is an equidigital number, since it uses as much as digits as its factorization.

205571125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71541 (or 71531 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 205571125 is about 14337.7517414691. The cubic root of 205571125 is about 590.1839175738.

The spelling of 205571125 in words is "two hundred five million, five hundred seventy-one thousand, one hundred twenty-five".