205247304573 has 16 divisors (see below), whose sum is σ = 285585671040. Its totient is φ = 130871245824.

The previous prime is 205247304499. The next prime is 205247304589. The reversal of 205247304573 is 375403742502.

It is not a de Polignac number, because 205247304573 - 2¹³ = 205247296381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205247304373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736365 + ... + 976077.

It is an arithmetic number, because the mean of its divisors is an integer number (17849104440).

Almost surely, 2^205247304573 is an apocalyptic number.

205247304573 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

205247304573 is a deficient number, since it is larger than the sum of its proper divisors (80338366467).

205247304573 is a wasteful number, since it uses less digits than its factorization.

205247304573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252148.

The product of its (nonzero) digits is 705600, while the sum is 42.

The spelling of 205247304573 in words is "two hundred five billion, two hundred forty-seven million, three hundred four thousand, five hundred seventy-three".