205551225042035 has 16 divisors (see below), whose sum is σ = 249644152746720. Its totient is φ = 162455653873920.

The previous prime is 205551225041993. The next prime is 205551225042041. The reversal of 205551225042035 is 530240522155502.

It is a happy number.

It is not a de Polignac number, because 205551225042035 - 2¹⁶ = 205551224976499 is a prime.

It is a super-2 number, since 2×205551225042035² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205551225041983 and 205551225042001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195034517 + ... + 196085606.

It is an arithmetic number, because the mean of its divisors is an integer number (15602759546670).

Almost surely, 2^{205551225042035} is an apocalyptic number.

205551225042035 is a deficient number, since it is larger than the sum of its proper divisors (44092927704685).

205551225042035 is a wasteful number, since it uses less digits than its factorization.

205551225042035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391121398.

The product of its (nonzero) digits is 600000, while the sum is 41.

Adding to 205551225042035 its reverse (530240522155502), we get a palindrome (735791747197537).

The spelling of 205551225042035 in words is "two hundred five trillion, five hundred fifty-one billion, two hundred twenty-five million, forty-two thousand, thirty-five".