255408963800 has 24 divisors (see below), whose sum is σ = 593825841300. Its totient is φ = 102163585440.

The previous prime is 255408963791. The next prime is 255408963839. The reversal of 255408963800 is 8369804552.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 638522210 + ... + 638522609.

Almost surely, 2^255408963800 is an apocalyptic number.

255408963800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255408963800 is an abundant number, since it is smaller than the sum of its proper divisors (338416877500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255408963800 is a wasteful number, since it uses less digits than its factorization.

255408963800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277044835 (or 1277044826 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 255408963800 in words is "two hundred fifty-five billion, four hundred eight million, nine hundred sixty-three thousand, eight hundred".