255550133123 has 4 divisors (see below), whose sum is σ = 255560783400. Its totient is φ = 255539482848.

The previous prime is 255550133117. The next prime is 255550133147. The reversal of 255550133123 is 321331055552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255550133123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255550133183) 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, 5289065 + ... + 5337162.

It is an arithmetic number, because the mean of its divisors is an integer number (63890195850).

Almost surely, 2^255550133123 is an apocalyptic number.

255550133123 is a deficient number, since it is larger than the sum of its proper divisors (10650277).

255550133123 is a wasteful number, since it uses less digits than its factorization.

255550133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10650276.

The product of its (nonzero) digits is 67500, while the sum is 35.

Adding to 255550133123 its reverse (321331055552), we get a palindrome (576881188675).

The spelling of 255550133123 in words is "two hundred fifty-five billion, five hundred fifty million, one hundred thirty-three thousand, one hundred twenty-three".