255054403999 has 12 divisors (see below), whose sum is σ = 266852286792. Its totient is φ = 243757910000.

The previous prime is 255054403931. The next prime is 255054404023. The reversal of 255054403999 is 999304450552.

It is not a de Polignac number, because 255054403999 - 2⁷ = 255054403871 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 (255054403099) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 420624 + ... + 828874.

It is an arithmetic number, because the mean of its divisors is an integer number (22237690566).

Almost surely, 2^255054403999 is an apocalyptic number.

255054403999 is a deficient number, since it is larger than the sum of its proper divisors (11797882793).

255054403999 is a wasteful number, since it uses less digits than its factorization.

255054403999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409478 (or 409455 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 55.

The spelling of 255054403999 in words is "two hundred fifty-five billion, fifty-four million, four hundred three thousand, nine hundred ninety-nine".