255873578225 has 12 divisors (see below), whose sum is σ = 320848219980. Its totient is φ = 202398873600.

The previous prime is 255873578197. The next prime is 255873578243. The reversal of 255873578225 is 522875378552.

It can be written as a sum of positive squares in 6 ways, for example, as 774842896 + 255098735329 = 27836^2 + 505073^2 .

It is not a de Polignac number, because 255873578225 - 2⁶ = 255873578161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57497456 + ... + 57501905.

It is an arithmetic number, because the mean of its divisors is an integer number (26737351665).

Almost surely, 2^255873578225 is an apocalyptic number.

255873578225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255873578225 is a deficient number, since it is larger than the sum of its proper divisors (64974641755).

255873578225 is a wasteful number, since it uses less digits than its factorization.

255873578225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114999460 (or 114999455 counting only the distinct ones).

The product of its digits is 47040000, while the sum is 59.

The spelling of 255873578225 in words is "two hundred fifty-five billion, eight hundred seventy-three million, five hundred seventy-eight thousand, two hundred twenty-five".