255031235111205 has 160 divisors (see below), whose sum is σ = 523474395265536. Its totient is φ = 116363151507456.

The previous prime is 255031235111203. The next prime is 255031235111207. The reversal of 255031235111205 is 502111532130552.

255031235111205 is a `hidden beast` number, since 2 + 5 + 5 + 0 + 3 + 12 + 3 + 511 + 120 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (255031235111203) and next prime (255031235111207).

It is not a de Polignac number, because 255031235111205 - 2¹ = 255031235111203 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255031235111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255031235111201) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 13114158792 + ... + 13114178238.

Almost surely, 2^{255031235111205} is an apocalyptic number.

It is an amenable number.

255031235111205 is an abundant number, since it is smaller than the sum of its proper divisors (268443160154331).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255031235111205 is a wasteful number, since it uses less digits than its factorization.

255031235111205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28065 (or 28056 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

Adding to 255031235111205 its reverse (502111532130552), we get a palindrome (757142767241757).

The spelling of 255031235111205 in words is "two hundred fifty-five trillion, thirty-one billion, two hundred thirty-five million, one hundred eleven thousand, two hundred five".