255050550491 has 4 divisors (see below), whose sum is σ = 278236964184. Its totient is φ = 231864136800.

The previous prime is 255050550481. The next prime is 255050550523. The reversal of 255050550491 is 194055050552.

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

It is a cyclic number.

It is not a de Polignac number, because 255050550491 - 2¹⁴ = 255050534107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255050550481) 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, 11593206830 + ... + 11593206851.

It is an arithmetic number, because the mean of its divisors is an integer number (69559241046).

Almost surely, 2^255050550491 is an apocalyptic number.

255050550491 is a deficient number, since it is larger than the sum of its proper divisors (23186413693).

255050550491 is a wasteful number, since it uses less digits than its factorization.

255050550491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23186413692.

The product of its (nonzero) digits is 225000, while the sum is 41.

The spelling of 255050550491 in words is "two hundred fifty-five billion, fifty million, five hundred fifty thousand, four hundred ninety-one".