445505503 has 2 divisors, whose sum is σ = 445505504. Its totient is φ = 445505502.

The previous prime is 445505497. The next prime is 445505513. The reversal of 445505503 is 305505544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445505503 - 2⁹ = 445504991 is a prime.

It is equal to p_23627272 and since 445505503 and 23627272 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445505513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222752751 + 222752752.

It is an arithmetic number, because the mean of its divisors is an integer number (222752752).

Almost surely, 2^445505503 is an apocalyptic number.

445505503 is a deficient number, since it is larger than the sum of its proper divisors (1).

445505503 is an equidigital number, since it uses as much as digits as its factorization.

445505503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 445505503 is about 21107.0012791964. The cubic root of 445505503 is about 763.7496501401.

The spelling of 445505503 in words is "four hundred forty-five million, five hundred five thousand, five hundred three".