255442404213 has 6 divisors (see below), whose sum is σ = 368972361654. Its totient is φ = 170294936136.

The previous prime is 255442404163. The next prime is 255442404221. The reversal of 255442404213 is 312404244552.

255442404213 is a `hidden beast` number, since 2 + 554 + 42 + 40 + 4 + 21 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 176246313489 + 79196090724 = 419817^2 + 281418^2 .

It is not a de Polignac number, because 255442404213 - 2⁶ = 255442404149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255442604213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14191244670 + ... + 14191244687.

It is an arithmetic number, because the mean of its divisors is an integer number (61495393609).

Almost surely, 2^255442404213 is an apocalyptic number.

It is an amenable number.

255442404213 is a deficient number, since it is larger than the sum of its proper divisors (113529957441).

255442404213 is a wasteful number, since it uses less digits than its factorization.

255442404213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28382489363 (or 28382489360 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 255442404213 its reverse (312404244552), we get a palindrome (567846648765).

The spelling of 255442404213 in words is "two hundred fifty-five billion, four hundred forty-two million, four hundred four thousand, two hundred thirteen".