255302545300421 has 4 divisors (see below), whose sum is σ = 255302795786700. Its totient is φ = 255302294814144.

The previous prime is 255302545300381. The next prime is 255302545300483. The reversal of 255302545300421 is 124003545203552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142084135209025 + 113218410091396 = 11919905^2 + 10640414^2 .

It is a cyclic number.

It is not a de Polignac number, because 255302545300421 - 2³⁰ = 255301471558597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255302545300921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123708026 + ... + 125754843.

It is an arithmetic number, because the mean of its divisors is an integer number (63825698946675).

Almost surely, 2^{255302545300421} is an apocalyptic number.

It is an amenable number.

255302545300421 is a deficient number, since it is larger than the sum of its proper divisors (250486279).

255302545300421 is a wasteful number, since it uses less digits than its factorization.

255302545300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250486278.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 255302545300421 in words is "two hundred fifty-five trillion, three hundred two billion, five hundred forty-five million, three hundred thousand, four hundred twenty-one".