550105001 has 2 divisors, whose sum is σ = 550105002. Its totient is φ = 550105000.

The previous prime is 550104991. The next prime is 550105009. The reversal of 550105001 is 100501055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317694976 + 232410025 = 17824^2 + 15245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550105001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550105009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275052500 + 275052501.

It is an arithmetic number, because the mean of its divisors is an integer number (275052501).

Almost surely, 2^550105001 is an apocalyptic number.

It is an amenable number.

550105001 is a deficient number, since it is larger than the sum of its proper divisors (1).

550105001 is an equidigital number, since it uses as much as digits as its factorization.

550105001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 550105001 is about 23454.3173211245. The cubic root of 550105001 is about 819.3734064059.

Adding to 550105001 its reverse (100501055), we get a palindrome (650606056).

The spelling of 550105001 in words is "five hundred fifty million, one hundred five thousand, one".