255330425 has 18 divisors (see below), whose sum is σ = 368302878. Its totient is φ = 175082880.

The previous prime is 255330391. The next prime is 255330443. The reversal of 255330425 is 524033552.

It can be written as a sum of positive squares in 3 ways, for example, as 2393209 + 252937216 = 1547^2 + 15904^2 .

It is a de Polignac number, because none of the positive numbers 2^k-255330425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 102992 + ... + 105441.

It is an arithmetic number, because the mean of its divisors is an integer number (20461271).

Almost surely, 2^255330425 is an apocalyptic number.

255330425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255330425 is a deficient number, since it is larger than the sum of its proper divisors (112972453).

255330425 is a wasteful number, since it uses less digits than its factorization.

255330425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208457 (or 208445 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 255330425 is about 15979.0620813613. The cubic root of 255330425 is about 634.4063519979.

Adding to 255330425 its reverse (524033552), we get a palindrome (779363977).

The spelling of 255330425 in words is "two hundred fifty-five million, three hundred thirty thousand, four hundred twenty-five".