255063525217 has 4 divisors (see below), whose sum is σ = 263858819220. Its totient is φ = 246268231216.

The previous prime is 255063525173. The next prime is 255063525239. The reversal of 255063525217 is 712525360552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101406581136 + 153656944081 = 318444^2 + 391991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255063525217 is a prime.

It is a super-2 number, since 2×255063525217² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255063595217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4397646958 + ... + 4397647015.

It is an arithmetic number, because the mean of its divisors is an integer number (65964704805).

Almost surely, 2^255063525217 is an apocalyptic number.

It is an amenable number.

255063525217 is a deficient number, since it is larger than the sum of its proper divisors (8795294003).

255063525217 is an equidigital number, since it uses as much as digits as its factorization.

255063525217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8795294002.

The product of its (nonzero) digits is 630000, while the sum is 43.

Adding to 255063525217 its reverse (712525360552), we get a palindrome (967588885769).

The spelling of 255063525217 in words is "two hundred fifty-five billion, sixty-three million, five hundred twenty-five thousand, two hundred seventeen".