255505004998 has 16 divisors (see below), whose sum is σ = 405998575920. Its totient is φ = 120257800416.

The previous prime is 255505004987. The next prime is 255505004999. The reversal of 255505004998 is 899400505552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255505004999) 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 7 ways as a sum of consecutive naturals, for example, 21407461 + ... + 21419392.

It is an arithmetic number, because the mean of its divisors is an integer number (25374910995).

Almost surely, 2^255505004998 is an apocalyptic number.

255505004998 is a deficient number, since it is larger than the sum of its proper divisors (150493570922).

255505004998 is a wasteful number, since it uses less digits than its factorization.

255505004998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42827031.

The product of its (nonzero) digits is 3240000, while the sum is 52.

The spelling of 255505004998 in words is "two hundred fifty-five billion, five hundred five million, four thousand, nine hundred ninety-eight".