2145550333 has 2 divisors, whose sum is σ = 2145550334. Its totient is φ = 2145550332.

The previous prime is 2145550327. The next prime is 2145550361. The reversal of 2145550333 is 3330555412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1737389124 + 408161209 = 41682^2 + 20203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145550333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145550295 and 2145550304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145550733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072775166 + 1072775167.

It is an arithmetic number, because the mean of its divisors is an integer number (1072775167).

Almost surely, 2^2145550333 is an apocalyptic number.

It is an amenable number.

2145550333 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145550333 is an equidigital number, since it uses as much as digits as its factorization.

2145550333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 2145550333 is about 46320.0856324770. The cubic root of 2145550333 is about 1289.7718750101.

The spelling of 2145550333 in words is "two billion, one hundred forty-five million, five hundred fifty thousand, three hundred thirty-three".