2255781347 has 4 divisors (see below), whose sum is σ = 2255889000. Its totient is φ = 2255673696.

The previous prime is 2255781343. The next prime is 2255781349. The reversal of 2255781347 is 7431875522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2255781347 - 2² = 2255781343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2255781298 and 2255781307.

It is not an unprimeable number, because it can be changed into a prime (2255781343) 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, 11078 + ... + 68075.

It is an arithmetic number, because the mean of its divisors is an integer number (563972250).

Almost surely, 2^2255781347 is an apocalyptic number.

2255781347 is a deficient number, since it is larger than the sum of its proper divisors (107653).

2255781347 is an equidigital number, since it uses as much as digits as its factorization.

2255781347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107652.

The product of its digits is 470400, while the sum is 44.

The square root of 2255781347 is about 47495.0665543275. The cubic root of 2255781347 is about 1311.4920642723.

The spelling of 2255781347 in words is "two billion, two hundred fifty-five million, seven hundred eighty-one thousand, three hundred forty-seven".