42520415089 has 2 divisors, whose sum is σ = 42520415090. Its totient is φ = 42520415088.

The previous prime is 42520415057. The next prime is 42520415111. The reversal of 42520415089 is 98051402524.

It is a happy number.

42520415089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42422405089 + 98010000 = 205967^2 + 9900^2 .

It is a cyclic number.

It is not a de Polignac number, because 42520415089 - 2⁵ = 42520415057 is a prime.

It is not a weakly prime, because it can be changed into another prime (42520415009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21260207544 + 21260207545.

It is an arithmetic number, because the mean of its divisors is an integer number (21260207545).

Almost surely, 2^42520415089 is an apocalyptic number.

It is an amenable number.

42520415089 is a deficient number, since it is larger than the sum of its proper divisors (1).

42520415089 is an equidigital number, since it uses as much as digits as its factorization.

42520415089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 42520415089 in words is "forty-two billion, five hundred twenty million, four hundred fifteen thousand, eighty-nine".