255015354515022 has 112 divisors (see below), whose sum is σ = 607387367925360. Its totient is φ = 79987876690176.

The previous prime is 255015354515021. The next prime is 255015354515123. The reversal of 255015354515022 is 220515453510552.

255015354515022 is a `hidden beast` number, since 2 + 5 + 5 + 0 + 1 + 53 + 545 + 1 + 50 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255015354515021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 116225229 + ... + 118399047.

Almost surely, 2^{255015354515022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255015354515022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303693683962680).

255015354515022 is an abundant number, since it is smaller than the sum of its proper divisors (352372013410338).

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

255015354515022 is a wasteful number, since it uses less digits than its factorization.

255015354515022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178589 (or 2178574 counting only the distinct ones).

The product of its (nonzero) digits is 1500000, while the sum is 45.

The spelling of 255015354515022 in words is "two hundred fifty-five trillion, fifteen billion, three hundred fifty-four million, five hundred fifteen thousand, twenty-two".