205570944525 has 24 divisors (see below), whose sum is σ = 341299405440. Its totient is φ = 109179091840.

The previous prime is 205570944457. The next prime is 205570944529. The reversal of 205570944525 is 525449075502.

It is not a de Polignac number, because 205570944525 - 2⁸ = 205570944269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205570944529) 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, 5716272 + ... + 5752121.

It is an arithmetic number, because the mean of its divisors is an integer number (14220808560).

Almost surely, 2^205570944525 is an apocalyptic number.

205570944525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205570944525 is a deficient number, since it is larger than the sum of its proper divisors (135728460915).

205570944525 is a wasteful number, since it uses less digits than its factorization.

205570944525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11468645 (or 11468640 counting only the distinct ones).

The product of its (nonzero) digits is 2520000, while the sum is 48.

The spelling of 205570944525 in words is "two hundred five billion, five hundred seventy million, nine hundred forty-four thousand, five hundred twenty-five".