4550941981 has 2 divisors, whose sum is σ = 4550941982. Its totient is φ = 4550941980.

The previous prime is 4550941849. The next prime is 4550942017. The reversal of 4550941981 is 1891490554.

It is a happy number.

4550941981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3278593081 + 1272348900 = 57259^2 + 35670^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550941981 - 2⁹ = 4550941469 is a prime.

It is a super-2 number, since 2×4550941981² = 41422145828856408722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4550941181) 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, 2275470990 + 2275470991.

It is an arithmetic number, because the mean of its divisors is an integer number (2275470991).

Almost surely, 2^4550941981 is an apocalyptic number.

It is an amenable number.

4550941981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4550941981 is an equidigital number, since it uses as much as digits as its factorization.

4550941981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 4550941981 is about 67460.6698825323. The cubic root of 4550941981 is about 1657.1701412058.

The spelling of 4550941981 in words is "four billion, five hundred fifty million, nine hundred forty-one thousand, nine hundred eighty-one".