255016625 has 8 divisors (see below), whose sum is σ = 318260904. Its totient is φ = 204013200.

The previous prime is 255016621. The next prime is 255016637. The reversal of 255016625 is 526610552.

It can be written as a sum of positive squares in 4 ways, for example, as 39601 + 254977024 = 199^2 + 15968^2 .

It is not a de Polignac number, because 255016625 - 2² = 255016621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255016591 and 255016600.

It is not an unprimeable number, because it can be changed into a prime (255016621) 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 7 ways as a sum of consecutive naturals, for example, 1019942 + ... + 1020191.

It is an arithmetic number, because the mean of its divisors is an integer number (39782613).

Almost surely, 2^255016625 is an apocalyptic number.

255016625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255016625 is a deficient number, since it is larger than the sum of its proper divisors (63244279).

255016625 is an equidigital number, since it uses as much as digits as its factorization.

255016625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040148 (or 2040138 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 255016625 is about 15969.2399631291. The cubic root of 255016625 is about 634.1463512246.

The spelling of 255016625 in words is "two hundred fifty-five million, sixteen thousand, six hundred twenty-five".