42444503 has 2 divisors, whose sum is σ = 42444504. Its totient is φ = 42444502.

The previous prime is 42444481. The next prime is 42444509. The reversal of 42444503 is 30544424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42444503 - 2⁸ = 42444247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42444509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21222251 + 21222252.

It is an arithmetic number, because the mean of its divisors is an integer number (21222252).

Almost surely, 2^42444503 is an apocalyptic number.

42444503 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444503 is an equidigital number, since it uses as much as digits as its factorization.

42444503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 42444503 is about 6514.9445891734. The cubic root of 42444503 is about 348.8246369292.

Adding to 42444503 its reverse (30544424), we get a palindrome (72988927).

The spelling of 42444503 in words is "forty-two million, four hundred forty-four thousand, five hundred three".