255005825 has 12 divisors (see below), whose sum is σ = 316720428. Its totient is φ = 203673600.

The previous prime is 255005809. The next prime is 255005833. The reversal of 255005825 is 528500552.

It can be written as a sum of positive squares in 6 ways, for example, as 16982641 + 238023184 = 4121^2 + 15428^2 .

It is not a de Polignac number, because 255005825 - 2⁴ = 255005809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 255005791 and 255005800.

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, 8069 + ... + 23981.

It is an arithmetic number, because the mean of its divisors is an integer number (26393369).

Almost surely, 2^255005825 is an apocalyptic number.

255005825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255005825 is a deficient number, since it is larger than the sum of its proper divisors (61714603).

255005825 is a wasteful number, since it uses less digits than its factorization.

255005825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16564 (or 16559 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 255005825 is about 15968.9018094545. The cubic root of 255005825 is about 634.1373990275.

The spelling of 255005825 in words is "two hundred fifty-five million, five thousand, eight hundred twenty-five".