255100205 has 4 divisors (see below), whose sum is σ = 306120252. Its totient is φ = 204080160.

The previous prime is 255100171. The next prime is 255100217. The reversal of 255100205 is 502001552.

255100205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 111555844 + 143544361 = 10562^2 + 11981^2 .

It is a de Polignac number, because none of the positive numbers 2^k-255100205 is a prime.

It is a super-2 number, since 2×255100205² = 130152229182084050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25510016 + ... + 25510025.

It is an arithmetic number, because the mean of its divisors is an integer number (76530063).

Almost surely, 2^255100205 is an apocalyptic number.

It is an amenable number.

255100205 is a deficient number, since it is larger than the sum of its proper divisors (51020047).

255100205 is an equidigital number, since it uses as much as digits as its factorization.

255100205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51020046.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 255100205 is about 15971.8566547537. The cubic root of 255100205 is about 634.2156227381.

Adding to 255100205 its reverse (502001552), we get a palindrome (757101757).

The spelling of 255100205 in words is "two hundred fifty-five million, one hundred thousand, two hundred five".