445703307503 has 2 divisors, whose sum is σ = 445703307504. Its totient is φ = 445703307502.

The previous prime is 445703307493. The next prime is 445703307521. The reversal of 445703307503 is 305703307544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445703307503 - 2¹⁰ = 445703306479 is a prime.

It is a super-2 number, since 2×445703307503² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445703307403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222851653751 + 222851653752.

It is an arithmetic number, because the mean of its divisors is an integer number (222851653752).

Almost surely, 2^445703307503 is an apocalyptic number.

445703307503 is a deficient number, since it is larger than the sum of its proper divisors (1).

445703307503 is an equidigital number, since it uses as much as digits as its factorization.

445703307503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 41.

Adding to 445703307503 its sum of digits (41), we get a palindrome (445703307544).

The spelling of 445703307503 in words is "four hundred forty-five billion, seven hundred three million, three hundred seven thousand, five hundred three".