205228525 has 12 divisors (see below), whose sum is σ = 262693504. Its totient is φ = 158886000.

The previous prime is 205228459. The next prime is 205228537. The reversal of 205228525 is 525822502.

It is not a de Polignac number, because 205228525 - 2⁹ = 205228013 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131631 + ... + 133180.

Almost surely, 2^205228525 is an apocalyptic number.

205228525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205228525 is a deficient number, since it is larger than the sum of its proper divisors (57464979).

205228525 is a wasteful number, since it uses less digits than its factorization.

205228525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264852 (or 264847 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 205228525 is about 14325.7992796214. The cubic root of 205228525 is about 589.8558730590.

The spelling of 205228525 in words is "two hundred five million, two hundred twenty-eight thousand, five hundred twenty-five".