42003336553 has 2 divisors, whose sum is σ = 42003336554. Its totient is φ = 42003336552.

The previous prime is 42003336541. The next prime is 42003336577. The reversal of 42003336553 is 35563330024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34338684249 + 7664652304 = 185307^2 + 87548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42003336553 is a prime.

It is not a weakly prime, because it can be changed into another prime (42003336523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21001668276 + 21001668277.

It is an arithmetic number, because the mean of its divisors is an integer number (21001668277).

Almost surely, 2^42003336553 is an apocalyptic number.

It is an amenable number.

42003336553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42003336553 is an equidigital number, since it uses as much as digits as its factorization.

42003336553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 34.

Adding to 42003336553 its reverse (35563330024), we get a palindrome (77566666577).

The spelling of 42003336553 in words is "forty-two billion, three million, three hundred thirty-six thousand, five hundred fifty-three".