255107100005 has 4 divisors (see below), whose sum is σ = 306128520012. Its totient is φ = 204085680000.

The previous prime is 255107099999. The next prime is 255107100007. The reversal of 255107100005 is 500001701552.

It is a happy number.

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 70618810564 + 184488289441 = 265742^2 + 429521^2 .

It is not a de Polignac number, because 255107100005 - 2³⁰ = 254033358181 is a prime.

It is a super-2 number, since 2×255107100005² (a number of 24 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 (255107100007) 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, 25510709996 + ... + 25510710005.

It is an arithmetic number, because the mean of its divisors is an integer number (76532130003).

Almost surely, 2^255107100005 is an apocalyptic number.

It is an amenable number.

255107100005 is a deficient number, since it is larger than the sum of its proper divisors (51021420007).

255107100005 is an equidigital number, since it uses as much as digits as its factorization.

255107100005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51021420006.

The product of its (nonzero) digits is 1750, while the sum is 26.

Adding to 255107100005 its reverse (500001701552), we get a palindrome (755108801557).

The spelling of 255107100005 in words is "two hundred fifty-five billion, one hundred seven million, one hundred thousand, five".