45005603 has 2 divisors, whose sum is σ = 45005604. Its totient is φ = 45005602.

The previous prime is 45005561. The next prime is 45005621. The reversal of 45005603 is 30650054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45005603 - 2⁶ = 45005539 is a prime.

It is a Chen prime.

It is equal to p_2718500 and since 45005603 and 2718500 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45005683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22502801 + 22502802.

It is an arithmetic number, because the mean of its divisors is an integer number (22502802).

Almost surely, 2^45005603 is an apocalyptic number.

45005603 is a deficient number, since it is larger than the sum of its proper divisors (1).

45005603 is an equidigital number, since it uses as much as digits as its factorization.

45005603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 45005603 is about 6708.6215424631. The cubic root of 45005603 is about 355.7040922609.

Adding to 45005603 its reverse (30650054), we get a palindrome (75655657).

The spelling of 45005603 in words is "forty-five million, five thousand, six hundred three".