42456503 has 2 divisors, whose sum is σ = 42456504. Its totient is φ = 42456502.

The previous prime is 42456487. The next prime is 42456511. The reversal of 42456503 is 30565424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42456503 - 2⁴ = 42456487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42456553) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21228251 + 21228252.

It is an arithmetic number, because the mean of its divisors is an integer number (21228252).

Almost surely, 2^42456503 is an apocalyptic number.

42456503 is a deficient number, since it is larger than the sum of its proper divisors (1).

42456503 is an equidigital number, since it uses as much as digits as its factorization.

42456503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 42456503 is about 6515.8654835716. The cubic root of 42456503 is about 348.8575073123.

The spelling of 42456503 in words is "forty-two million, four hundred fifty-six thousand, five hundred three".