255355434002550 has 96 divisors (see below), whose sum is σ = 723759742697472. Its totient is φ = 58366191502080.

The previous prime is 255355434002491. The next prime is 255355434002573. The reversal of 255355434002550 is 55200434553552.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 255355434002550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80590347 + ... + 83698953.

It is an arithmetic number, because the mean of its divisors is an integer number (7539163986432).

Almost surely, 2^{255355434002550} is an apocalyptic number.

255355434002550 is an abundant number, since it is smaller than the sum of its proper divisors (468404308694922).

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

255355434002550 is a wasteful number, since it uses less digits than its factorization.

255355434002550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186862 (or 3186857 counting only the distinct ones).

The product of its (nonzero) digits is 9000000, while the sum is 48.

The spelling of 255355434002550 in words is "two hundred fifty-five trillion, three hundred fifty-five billion, four hundred thirty-four million, two thousand, five hundred fifty".