255521110550 has 12 divisors (see below), whose sum is σ = 475269265716. Its totient is φ = 102208444200.

The previous prime is 255521110513. The next prime is 255521110553. The reversal of 255521110550 is 55011125552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255521110553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2555211056 + ... + 2555211155.

It is an arithmetic number, because the mean of its divisors is an integer number (39605772143).

Almost surely, 2^255521110550 is an apocalyptic number.

255521110550 is a deficient number, since it is larger than the sum of its proper divisors (219748155166).

255521110550 is a wasteful number, since it uses less digits than its factorization.

255521110550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110422223 (or 5110422218 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 32.

The spelling of 255521110550 in words is "two hundred fifty-five billion, five hundred twenty-one million, one hundred ten thousand, five hundred fifty".