42551226 has 12 divisors (see below), whose sum is σ = 92194362. Its totient is φ = 14183736.

The previous prime is 42551191. The next prime is 42551237. The reversal of 42551226 is 62215524.

42551226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39125025 + 3426201 = 6255^2 + 1851^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42551226.

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 5 ways as a sum of consecutive naturals, for example, 1181961 + ... + 1181996.

Almost surely, 2^42551226 is an apocalyptic number.

42551226 is an abundant number, since it is smaller than the sum of its proper divisors (49643136).

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

42551226 is a wasteful number, since it uses less digits than its factorization.

42551226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363965 (or 2363962 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 42551226 is about 6523.1300768879. The cubic root of 42551226 is about 349.1167552700.

The spelling of 42551226 in words is "forty-two million, five hundred fifty-one thousand, two hundred twenty-six".