255333231403405 has 16 divisors (see below), whose sum is σ = 324690792336000. Its totient is φ = 192216949041600.

The previous prime is 255333231403381. The next prime is 255333231403417. The reversal of 255333231403405 is 504304132333552.

It is not a de Polignac number, because 255333231403405 - 2³⁵ = 255298871665037 is a prime.

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, 9019174521 + ... + 9019202830.

It is an arithmetic number, because the mean of its divisors is an integer number (20293174521000).

Almost surely, 2^{255333231403405} is an apocalyptic number.

It is an amenable number.

255333231403405 is a deficient number, since it is larger than the sum of its proper divisors (69357560932595).

255333231403405 is a wasteful number, since it uses less digits than its factorization.

255333231403405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18038377524.

The product of its (nonzero) digits is 1944000, while the sum is 43.

Adding to 255333231403405 its reverse (504304132333552), we get a palindrome (759637363736957).

The spelling of 255333231403405 in words is "two hundred fifty-five trillion, three hundred thirty-three billion, two hundred thirty-one million, four hundred three thousand, four hundred five".