255152638441 has 2 divisors, whose sum is σ = 255152638442. Its totient is φ = 255152638440.

The previous prime is 255152638439. The next prime is 255152638451. The reversal of 255152638441 is 144836251552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165035000025 + 90117638416 = 406245^2 + 300196^2 .

It is a cyclic number.

It is not a de Polignac number, because 255152638441 - 2¹ = 255152638439 is a prime.

Together with 255152638439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 255152638391 and 255152638400.

It is not a weakly prime, because it can be changed into another prime (255152638451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127576319220 + 127576319221.

It is an arithmetic number, because the mean of its divisors is an integer number (127576319221).

Almost surely, 2^255152638441 is an apocalyptic number.

It is an amenable number.

255152638441 is a deficient number, since it is larger than the sum of its proper divisors (1).

255152638441 is an equidigital number, since it uses as much as digits as its factorization.

255152638441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152000, while the sum is 46.

Adding to 255152638441 its reverse (144836251552), we get a palindrome (399988889993).

The spelling of 255152638441 in words is "two hundred fifty-five billion, one hundred fifty-two million, six hundred thirty-eight thousand, four hundred forty-one".