255638241000 has 128 divisors (see below), whose sum is σ = 886212662400. Its totient is φ = 68170190400.

The previous prime is 255638240999. The next prime is 255638241031. The reversal of 255638241000 is 142836552.

255638241000 is a `hidden beast` number, since 2 + 5 + 5 + 638 + 2 + 4 + 10 + 0 + 0 = 666.

255638241000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 31 ways as a sum of consecutive naturals, for example, 4707042 + ... + 4761041.

It is an arithmetic number, because the mean of its divisors is an integer number (6923536425).

Almost surely, 2^255638241000 is an apocalyptic number.

255638241000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255638241000 is an abundant number, since it is smaller than the sum of its proper divisors (630574421400).

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

255638241000 is a wasteful number, since it uses less digits than its factorization.

255638241000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9468113 (or 9468093 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 255638241000 in words is "two hundred fifty-five billion, six hundred thirty-eight million, two hundred forty-one thousand".