42520163530 has 64 divisors (see below), whose sum is σ = 87654299040. Its totient is φ = 14711537664.

The previous prime is 42520163471. The next prime is 42520163551. The reversal of 42520163530 is 3536102524.

It is a happy number.

42520163530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 4351117369 + 38169046161 = 65963^2 + 195369^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42520163492 and 42520163501.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464082 + ... + 548098.

Almost surely, 2^42520163530 is an apocalyptic number.

42520163530 is an abundant number, since it is smaller than the sum of its proper divisors (45134135510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42520163530 is a wasteful number, since it uses less digits than its factorization.

42520163530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84283.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 42520163530 in words is "forty-two billion, five hundred twenty million, one hundred sixty-three thousand, five hundred thirty".