255221122533 has 24 divisors (see below), whose sum is σ = 370543641120. Its totient is φ = 156181671360.

The previous prime is 255221122531. The next prime is 255221122561. The reversal of 255221122533 is 335221122552.

It is not a de Polignac number, because 255221122533 - 2¹ = 255221122531 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255221122494 and 255221122503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255221122531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1315378 + ... + 1496883.

It is an arithmetic number, because the mean of its divisors is an integer number (15439318380).

Almost surely, 2^255221122533 is an apocalyptic number.

It is an amenable number.

255221122533 is a deficient number, since it is larger than the sum of its proper divisors (115322518587).

255221122533 is a wasteful number, since it uses less digits than its factorization.

255221122533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812469 (or 2812456 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The spelling of 255221122533 in words is "two hundred fifty-five billion, two hundred twenty-one million, one hundred twenty-two thousand, five hundred thirty-three".