42575556 has 12 divisors (see below), whose sum is σ = 99342992. Its totient is φ = 14191848.

The previous prime is 42575551. The next prime is 42575573. The reversal of 42575556 is 65557524.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (42575551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773970 + ... + 1773993.

Almost surely, 2^42575556 is an apocalyptic number.

It is an amenable number.

42575556 is an abundant number, since it is smaller than the sum of its proper divisors (56767436).

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

42575556 is a wasteful number, since it uses less digits than its factorization.

42575556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547970 (or 3547968 counting only the distinct ones).

The product of its digits is 210000, while the sum is 39.

The square root of 42575556 is about 6524.9947126415. The cubic root of 42575556 is about 349.1832820822.

The spelling of 42575556 in words is "forty-two million, five hundred seventy-five thousand, five hundred fifty-six".