256000559800 has 48 divisors (see below), whose sum is σ = 595258329600. Its totient is φ = 102390412800.

The previous prime is 256000559767. The next prime is 256000559809. The reversal of 256000559800 is 8955000652.

256000559800 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256000559809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2248240 + ... + 2359360.

It is an arithmetic number, because the mean of its divisors is an integer number (12401215200).

Almost surely, 2^256000559800 is an apocalyptic number.

256000559800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256000559800 is an abundant number, since it is smaller than the sum of its proper divisors (339257769800).

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

256000559800 is a wasteful number, since it uses less digits than its factorization.

256000559800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122656 (or 122647 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 256000559800 in words is "two hundred fifty-six billion, five hundred fifty-nine thousand, eight hundred".