205212525632263 has 4 divisors (see below), whose sum is σ = 205213767786040. Its totient is φ = 205211283478488.

The previous prime is 205212525632201. The next prime is 205212525632311. The reversal of 205212525632263 is 362236525212502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205212525632263 is a prime.

It is a super-2 number, since 2×205212525632263² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205212525632963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620829045 + ... + 621159502.

It is an arithmetic number, because the mean of its divisors is an integer number (51303441946510).

Almost surely, 2^{205212525632263} is an apocalyptic number.

205212525632263 is a deficient number, since it is larger than the sum of its proper divisors (1242153777).

205212525632263 is a wasteful number, since it uses less digits than its factorization.

205212525632263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242153776.

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 205212525632263 in words is "two hundred five trillion, two hundred twelve billion, five hundred twenty-five million, six hundred thirty-two thousand, two hundred sixty-three".