255255443515400 has 48 divisors (see below), whose sum is σ = 593481181084740. Its totient is φ = 102100065593600.

The previous prime is 255255443515357. The next prime is 255255443515421. The reversal of 255255443515400 is 4515344552552.

It can be written as a sum of positive squares in 6 ways, for example, as 54437805727204 + 200817637788196 = 7378198^2 + 14171014^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3487211 + ... + 22862010.

Almost surely, 2^{255255443515400} is an apocalyptic number.

255255443515400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255255443515400 is an abundant number, since it is smaller than the sum of its proper divisors (338225737569340).

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

255255443515400 is a wasteful number, since it uses less digits than its factorization.

255255443515400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26397674 (or 26397665 counting only the distinct ones).

The product of its (nonzero) digits is 12000000, while the sum is 50.

The spelling of 255255443515400 in words is "two hundred fifty-five trillion, two hundred fifty-five billion, four hundred forty-three million, five hundred fifteen thousand, four hundred".