255184038021 has 16 divisors (see below), whose sum is σ = 371197942848. Its totient is φ = 154648176000.

The previous prime is 255184038013. The next prime is 255184038047. The reversal of 255184038021 is 120830481552.

255184038021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255184038021 - 2³ = 255184038013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255184038521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392665 + ... + 815201.

It is an arithmetic number, because the mean of its divisors is an integer number (23199871428).

Almost surely, 2^255184038021 is an apocalyptic number.

It is an amenable number.

255184038021 is a deficient number, since it is larger than the sum of its proper divisors (116013904827).

255184038021 is a wasteful number, since it uses less digits than its factorization.

255184038021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440852.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 255184038021 in words is "two hundred fifty-five billion, one hundred eighty-four million, thirty-eight thousand, twenty-one".