2287255391 has 2 divisors, whose sum is σ = 2287255392. Its totient is φ = 2287255390.

The previous prime is 2287255387. The next prime is 2287255459. The reversal of 2287255391 is 1935527822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2287255391 - 2² = 2287255387 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2287255351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1143627695 + 1143627696.

It is an arithmetic number, because the mean of its divisors is an integer number (1143627696).

Almost surely, 2^2287255391 is an apocalyptic number.

2287255391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287255391 is an equidigital number, since it uses as much as digits as its factorization.

2287255391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 2287255391 is about 47825.2589224564. The cubic root of 2287255391 is about 1317.5634941621.

The spelling of 2287255391 in words is "two billion, two hundred eighty-seven million, two hundred fifty-five thousand, three hundred ninety-one".