45505001 has 2 divisors, whose sum is σ = 45505002. Its totient is φ = 45505000.

The previous prime is 45504983. The next prime is 45505003. The reversal of 45505001 is 10050554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31629376 + 13875625 = 5624^2 + 3725^2 .

It is a cyclic number.

It is not a de Polignac number, because 45505001 - 2¹⁰ = 45503977 is a prime.

Together with 45505003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45505003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22752500 + 22752501.

It is an arithmetic number, because the mean of its divisors is an integer number (22752501).

Almost surely, 2^45505001 is an apocalyptic number.

It is an amenable number.

45505001 is a deficient number, since it is larger than the sum of its proper divisors (1).

45505001 is an equidigital number, since it uses as much as digits as its factorization.

45505001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 45505001 is about 6745.7394702138. The cubic root of 45505001 is about 357.0149282231.

Adding to 45505001 its reverse (10050554), we get a palindrome (55555555).

The spelling of 45505001 in words is "forty-five million, five hundred five thousand, one".