1955255213 has 2 divisors, whose sum is σ = 1955255214. Its totient is φ = 1955255212.

The previous prime is 1955255179. The next prime is 1955255243. The reversal of 1955255213 is 3125525591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1702222564 + 253032649 = 41258^2 + 15907^2 .

It is a cyclic number.

It is not a de Polignac number, because 1955255213 - 2¹⁴ = 1955238829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955255243) 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, 977627606 + 977627607.

It is an arithmetic number, because the mean of its divisors is an integer number (977627607).

Almost surely, 2^1955255213 is an apocalyptic number.

It is an amenable number.

1955255213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955255213 is an equidigital number, since it uses as much as digits as its factorization.

1955255213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67500, while the sum is 38.

The square root of 1955255213 is about 44218.2678652161. The cubic root of 1955255213 is about 1250.4542803235.

The spelling of 1955255213 in words is "one billion, nine hundred fifty-five million, two hundred fifty-five thousand, two hundred thirteen".