255520621053336 has 64 divisors (see below), whose sum is σ = 640882463932800. Its totient is φ = 84896119496448.

The previous prime is 255520621053157. The next prime is 255520621053377. The reversal of 255520621053336 is 633350126025552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120182355 + ... + 122289981.

It is an arithmetic number, because the mean of its divisors is an integer number (10013788498950).

Almost surely, 2^{255520621053336} is an apocalyptic number.

It is an amenable number.

255520621053336 is an abundant number, since it is smaller than the sum of its proper divisors (385361842879464).

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

255520621053336 is a wasteful number, since it uses less digits than its factorization.

255520621053336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124088 (or 2124084 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 48.

Adding to 255520621053336 its reverse (633350126025552), we get a palindrome (888870747078888).

The spelling of 255520621053336 in words is "two hundred fifty-five trillion, five hundred twenty billion, six hundred twenty-one million, fifty-three thousand, three hundred thirty-six".