1955255243 has 2 divisors, whose sum is σ = 1955255244. Its totient is φ = 1955255242.

The previous prime is 1955255213. The next prime is 1955255251. The reversal of 1955255243 is 3425525591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1955255243 - 2⁶ = 1955255179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1955255243.

It is not a weakly prime, because it can be changed into another prime (1955255213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977627621 + 977627622.

It is an arithmetic number, because the mean of its divisors is an integer number (977627622).

Almost surely, 2^1955255243 is an apocalyptic number.

1955255243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955255243 is an equidigital number, since it uses as much as digits as its factorization.

1955255243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270000, while the sum is 41.

The square root of 1955255243 is about 44218.2682044424. The cubic root of 1955255243 is about 1250.4542867189.

The spelling of 1955255243 in words is "one billion, nine hundred fifty-five million, two hundred fifty-five thousand, two hundred forty-three".