255645264616225 has 24 divisors (see below), whose sum is σ = 345839848404480. Its totient is φ = 185912255256000.

The previous prime is 255645264616199. The next prime is 255645264616229. The reversal of 255645264616225 is 522616462546552.

It is a happy number.

It is not a de Polignac number, because 255645264616225 - 2¹⁹ = 255645264091937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255645264616229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24506881 + ... + 33344830.

It is an arithmetic number, because the mean of its divisors is an integer number (14409993683520).

Almost surely, 2^{255645264616225} is an apocalyptic number.

255645264616225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255645264616225 is a deficient number, since it is larger than the sum of its proper divisors (90194583788255).

255645264616225 is a wasteful number, since it uses less digits than its factorization.

255645264616225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57867801 (or 57867796 counting only the distinct ones).

The product of its digits is 207360000, while the sum is 61.

The spelling of 255645264616225 in words is "two hundred fifty-five trillion, six hundred forty-five billion, two hundred sixty-four million, six hundred sixteen thousand, two hundred twenty-five".