2255742317 has 4 divisors (see below), whose sum is σ = 2272961856. Its totient is φ = 2238522780.

The previous prime is 2255742283. The next prime is 2255742323. The reversal of 2255742317 is 7132475522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2255742317 - 2⁶ = 2255742253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255742337) 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, 8609573 + ... + 8609834.

It is an arithmetic number, because the mean of its divisors is an integer number (568240464).

Almost surely, 2^2255742317 is an apocalyptic number.

It is an amenable number.

2255742317 is a deficient number, since it is larger than the sum of its proper divisors (17219539).

2255742317 is a wasteful number, since it uses less digits than its factorization.

2255742317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17219538.

The product of its digits is 117600, while the sum is 38.

The square root of 2255742317 is about 47494.6556677696. The cubic root of 2255742317 is about 1311.4845003255.

The spelling of 2255742317 in words is "two billion, two hundred fifty-five million, seven hundred forty-two thousand, three hundred seventeen".