213255553289 has 2 divisors, whose sum is σ = 213255553290. Its totient is φ = 213255553288.

The previous prime is 213255553201. The next prime is 213255553309. The reversal of 213255553289 is 982355552312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208399554064 + 4855999225 = 456508^2 + 69685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213255553289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213255453289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106627776644 + 106627776645.

It is an arithmetic number, because the mean of its divisors is an integer number (106627776645).

Almost surely, 2^213255553289 is an apocalyptic number.

It is an amenable number.

213255553289 is a deficient number, since it is larger than the sum of its proper divisors (1).

213255553289 is an equidigital number, since it uses as much as digits as its factorization.

213255553289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240000, while the sum is 50.

The spelling of 213255553289 in words is "two hundred thirteen billion, two hundred fifty-five million, five hundred fifty-three thousand, two hundred eighty-nine".