255305125 has 16 divisors (see below), whose sum is σ = 329612400. Its totient is φ = 197198400.

The previous prime is 255305123. The next prime is 255305131. The reversal of 255305125 is 521503552.

It can be written as a sum of positive squares in 8 ways, for example, as 80245764 + 175059361 = 8958^2 + 13231^2 .

It is not a de Polignac number, because 255305125 - 2¹ = 255305123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255305093 and 255305102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255305123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31590 + ... + 38839.

It is an arithmetic number, because the mean of its divisors is an integer number (20600775).

Almost surely, 2^255305125 is an apocalyptic number.

255305125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255305125 is a deficient number, since it is larger than the sum of its proper divisors (74307275).

255305125 is an equidigital number, since it uses as much as digits as its factorization.

255305125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70473 (or 70463 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 255305125 is about 15978.2704007662. The cubic root of 255305125 is about 634.3853974369.

Adding to 255305125 its reverse (521503552), we get a palindrome (776808677).

The spelling of 255305125 in words is "two hundred fifty-five million, three hundred five thousand, one hundred twenty-five".