42520554163 has 2 divisors, whose sum is σ = 42520554164. Its totient is φ = 42520554162.

The previous prime is 42520554121. The next prime is 42520554247. The reversal of 42520554163 is 36145502524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42520554163 - 2⁹ = 42520553651 is a prime.

It is not a weakly prime, because it can be changed into another prime (42520504163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21260277081 + 21260277082.

It is an arithmetic number, because the mean of its divisors is an integer number (21260277082).

Almost surely, 2^42520554163 is an apocalyptic number.

42520554163 is a deficient number, since it is larger than the sum of its proper divisors (1).

42520554163 is an equidigital number, since it uses as much as digits as its factorization.

42520554163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 42520554163 in words is "forty-two billion, five hundred twenty million, five hundred fifty-four thousand, one hundred sixty-three".