42205256 has 8 divisors (see below), whose sum is σ = 79134870. Its totient is φ = 21102624.

The previous prime is 42205217. The next prime is 42205279. The reversal of 42205256 is 65250224.

It can be written as a sum of positive squares in only one way, i.e., 26728900 + 15476356 = 5170^2 + 3934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2637821 + ... + 2637836.

Almost surely, 2^42205256 is an apocalyptic number.

It is an amenable number.

42205256 is a deficient number, since it is larger than the sum of its proper divisors (36929614).

42205256 is a wasteful number, since it uses less digits than its factorization.

42205256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275663 (or 5275659 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 42205256 is about 6496.5572421091. The cubic root of 42205256 is about 348.1679948122.

The spelling of 42205256 in words is "forty-two million, two hundred five thousand, two hundred fifty-six".