42530425523 has 2 divisors, whose sum is σ = 42530425524. Its totient is φ = 42530425522.

The previous prime is 42530425517. The next prime is 42530425549. The reversal of 42530425523 is 32552403524.

42530425523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42530425523 - 2²⁰ = 42529376947 is a prime.

It is not a weakly prime, because it can be changed into another prime (42530425583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21265212761 + 21265212762.

It is an arithmetic number, because the mean of its divisors is an integer number (21265212762).

Almost surely, 2^42530425523 is an apocalyptic number.

42530425523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42530425523 is an equidigital number, since it uses as much as digits as its factorization.

42530425523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 42530425523 in words is "forty-two billion, five hundred thirty million, four hundred twenty-five thousand, five hundred twenty-three".