255300452403221 has 24 divisors (see below), whose sum is σ = 277764960303360. Its totient is φ = 234507158351424.

The previous prime is 255300452403211. The next prime is 255300452403223. The reversal of 255300452403221 is 122304254003552.

It is a de Polignac number, because none of the positive numbers 2^k-255300452403221 is a prime.

It is a super-2 number, since 2×255300452403221² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255300452403223) 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, 80544485 + ... + 83654138.

It is an arithmetic number, because the mean of its divisors is an integer number (11573540012640).

Almost surely, 2^{255300452403221} is an apocalyptic number.

It is an amenable number.

255300452403221 is a deficient number, since it is larger than the sum of its proper divisors (22464507900139).

255300452403221 is a wasteful number, since it uses less digits than its factorization.

255300452403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164198793 (or 164198774 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 255300452403221 in words is "two hundred fifty-five trillion, three hundred billion, four hundred fifty-two million, four hundred three thousand, two hundred twenty-one".