42555772 has 24 divisors (see below), whose sum is σ = 87413984. Its totient is φ = 17744832.

The previous prime is 42555769. The next prime is 42555803. The reversal of 42555772 is 27755524.

42555772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19503 + ... + 21574.

Almost surely, 2^42555772 is an apocalyptic number.

It is an amenable number.

42555772 is an abundant number, since it is smaller than the sum of its proper divisors (44858212).

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

42555772 is a wasteful number, since it uses less digits than its factorization.

42555772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41125 (or 41123 counting only the distinct ones).

The product of its digits is 98000, while the sum is 37.

The square root of 42555772 is about 6523.4785199309. The cubic root of 42555772 is about 349.1291875655.

The spelling of 42555772 in words is "forty-two million, five hundred fifty-five thousand, seven hundred seventy-two".