255211287897 has 8 divisors (see below), whose sum is σ = 340518193920. Its totient is φ = 170022620240.

The previous prime is 255211287889. The next prime is 255211287913. The reversal of 255211287897 is 798782112552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255211287897 - 2³ = 255211287889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255211287197) 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 7 ways as a sum of consecutive naturals, for example, 29554554 + ... + 29563187.

It is an arithmetic number, because the mean of its divisors is an integer number (42564774240).

Almost surely, 2^255211287897 is an apocalyptic number.

It is an amenable number.

255211287897 is a deficient number, since it is larger than the sum of its proper divisors (85306906023).

255211287897 is a wasteful number, since it uses less digits than its factorization.

255211287897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59119183.

The product of its digits is 5644800, while the sum is 57.

The spelling of 255211287897 in words is "two hundred fifty-five billion, two hundred eleven million, two hundred eighty-seven thousand, eight hundred ninety-seven".