205024455013 has 16 divisors (see below), whose sum is σ = 235425041280. Its totient is φ = 174902291136.

The previous prime is 205024455011. The next prime is 205024455049. The reversal of 205024455013 is 310554420502.

It is a cyclic number.

It is not a de Polignac number, because 205024455013 - 2¹ = 205024455011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205024455011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4525170 + ... + 4570252.

It is an arithmetic number, because the mean of its divisors is an integer number (14714065080).

Almost surely, 2^205024455013 is an apocalyptic number.

It is an amenable number.

205024455013 is a deficient number, since it is larger than the sum of its proper divisors (30400586267).

205024455013 is a wasteful number, since it uses less digits than its factorization.

205024455013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48156.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 205024455013 its reverse (310554420502), we get a palindrome (515578875515).

The spelling of 205024455013 in words is "two hundred five billion, twenty-four million, four hundred fifty-five thousand, thirteen".