42805575 has 108 divisors (see below), whose sum is σ = 88440768. Its totient is φ = 19699200.

The previous prime is 42805561. The next prime is 42805589. The reversal of 42805575 is 57550824.

It is a happy number.

42805575 is a `hidden beast` number, since 4 + 2 + 80 + 5 + 575 = 666.

It is an interprime number because it is at equal distance from previous prime (42805561) and next prime (42805589).

It is not a de Polignac number, because 42805575 - 2⁷ = 42805447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1380810 + ... + 1380840.

It is an arithmetic number, because the mean of its divisors is an integer number (818896).

Almost surely, 2^42805575 is an apocalyptic number.

42805575 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42805575 is an abundant number, since it is smaller than the sum of its proper divisors (45635193).

42805575 is a wasteful number, since it uses less digits than its factorization.

42805575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 42805575 is about 6542.5969614519. The cubic root of 42805575 is about 349.8109863790.

The spelling of 42805575 in words is "forty-two million, eight hundred five thousand, five hundred seventy-five".