255555555825 has 12 divisors (see below), whose sum is σ = 422518519088. Its totient is φ = 136296296400.

The previous prime is 255555555799. The next prime is 255555555839. The reversal of 255555555825 is 528555555552.

It is not a de Polignac number, because 255555555825 - 2⁵ = 255555555793 is a prime.

It is a super-2 number, since 2×255555555825² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

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, 1703703631 + ... + 1703703780.

Almost surely, 2^255555555825 is an apocalyptic number.

255555555825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255555555825 is a deficient number, since it is larger than the sum of its proper divisors (166962963263).

255555555825 is a wasteful number, since it uses less digits than its factorization.

255555555825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407407424 (or 3407407419 counting only the distinct ones).

The product of its digits is 62500000, while the sum is 57.

The spelling of 255555555825 in words is "two hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, eight hundred twenty-five".