42506547556 has 48 divisors (see below), whose sum is σ = 82518670080. Its totient is φ = 18997056000.

The previous prime is 42506547553. The next prime is 42506547593. The reversal of 42506547556 is 65574560524.

42506547556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×42506547556³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42506547553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812346 + ... + 863086.

It is an arithmetic number, because the mean of its divisors is an integer number (1719138960).

Almost surely, 2^42506547556 is an apocalyptic number.

It is an amenable number.

42506547556 is a deficient number, since it is larger than the sum of its proper divisors (40012122524).

42506547556 is a wasteful number, since it uses less digits than its factorization.

42506547556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51076 (or 51074 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 49.

The spelling of 42506547556 in words is "forty-two billion, five hundred six million, five hundred forty-seven thousand, five hundred fifty-six".