205348775025 has 12 divisors (see below), whose sum is σ = 339509974832. Its totient is φ = 109519346640.

The previous prime is 205348774991. The next prime is 205348775029. The reversal of 205348775025 is 520577843502.

It is not a de Polignac number, because 205348775025 - 2¹⁵ = 205348742257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205348775029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368991759 + ... + 1368991908.

Almost surely, 2^205348775025 is an apocalyptic number.

205348775025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205348775025 is a deficient number, since it is larger than the sum of its proper divisors (134161199807).

205348775025 is a wasteful number, since it uses less digits than its factorization.

205348775025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737983680 (or 2737983675 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 48.

The spelling of 205348775025 in words is "two hundred five billion, three hundred forty-eight million, seven hundred seventy-five thousand, twenty-five".