255100213 has 4 divisors (see below), whose sum is σ = 268526560. Its totient is φ = 241673868.

The previous prime is 255100171. The next prime is 255100217. The reversal of 255100213 is 312001552.

255100213 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255100213 - 2²⁵ = 221545781 is a prime.

It is a super-2 number, since 2×255100213² = 130152237345290738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 13426327 = 255100213 / (2 + 5 + 5 + 1 + 0 + 0 + 2 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255100217) 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, 6713145 + ... + 6713182.

It is an arithmetic number, because the mean of its divisors is an integer number (67131640).

Almost surely, 2^255100213 is an apocalyptic number.

It is an amenable number.

255100213 is a deficient number, since it is larger than the sum of its proper divisors (13426347).

255100213 is a wasteful number, since it uses less digits than its factorization.

255100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426346.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 255100213 is about 15971.8569051942. The cubic root of 255100213 is about 634.2156293678.

Adding to 255100213 its reverse (312001552), we get a palindrome (567101765).

The spelling of 255100213 in words is "two hundred fifty-five million, one hundred thousand, two hundred thirteen".