42559603 has 2 divisors, whose sum is σ = 42559604. Its totient is φ = 42559602.

The previous prime is 42559597. The next prime is 42559607. The reversal of 42559603 is 30695524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42559603 is a prime.

It is a super-2 number, since 2×42559603² = 3622639615035218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42559607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21279801 + 21279802.

It is an arithmetic number, because the mean of its divisors is an integer number (21279802).

Almost surely, 2^42559603 is an apocalyptic number.

42559603 is a deficient number, since it is larger than the sum of its proper divisors (1).

42559603 is an equidigital number, since it uses as much as digits as its factorization.

42559603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 42559603 is about 6523.7721450094. The cubic root of 42559603 is about 349.1396638082.

The spelling of 42559603 in words is "forty-two million, five hundred fifty-nine thousand, six hundred three".