83550001 has 2 divisors, whose sum is σ = 83550002. Its totient is φ = 83550000.

The previous prime is 83549971. The next prime is 83550017. The reversal of 83550001 is 10005538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64400625 + 19149376 = 8025^2 + 4376^2 .

It is a cyclic number.

It is not a de Polignac number, because 83550001 - 2⁹ = 83549489 is a prime.

It is not a weakly prime, because it can be changed into another prime (83520001) 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, 41775000 + 41775001.

It is an arithmetic number, because the mean of its divisors is an integer number (41775001).

Almost surely, 2^83550001 is an apocalyptic number.

It is an amenable number.

83550001 is a deficient number, since it is larger than the sum of its proper divisors (1).

83550001 is an equidigital number, since it uses as much as digits as its factorization.

83550001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 83550001 is about 9140.5689647855. The cubic root of 83550001 is about 437.1684580421.

Adding to 83550001 its reverse (10005538), we get a palindrome (93555539).

The spelling of 83550001 in words is "eighty-three million, five hundred fifty thousand, one".