255105241225213 has 4 divisors (see below), whose sum is σ = 255267625212288. Its totient is φ = 254942857238140.

The previous prime is 255105241225201. The next prime is 255105241225349. The reversal of 255105241225213 is 312522142501552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255105241225213 is a prime.

It is a super-2 number, since 2×255105241225213² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255105241235213) 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, 81191991181 + ... + 81191994322.

It is an arithmetic number, because the mean of its divisors is an integer number (63816906303072).

Almost surely, 2^{255105241225213} is an apocalyptic number.

It is an amenable number.

255105241225213 is a deficient number, since it is larger than the sum of its proper divisors (162383987075).

255105241225213 is a wasteful number, since it uses less digits than its factorization.

255105241225213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162383987074.

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 255105241225213 its reverse (312522142501552), we get a palindrome (567627383726765).

The spelling of 255105241225213 in words is "two hundred fifty-five trillion, one hundred five billion, two hundred forty-one million, two hundred twenty-five thousand, two hundred thirteen".