42258556 has 12 divisors (see below), whose sum is σ = 73998792. Its totient is φ = 21116048.

The previous prime is 42258553. The next prime is 42258563. The reversal of 42258556 is 65585224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42258553) 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, 8811 + ... + 12733.

It is an arithmetic number, because the mean of its divisors is an integer number (6166566).

Almost surely, 2^42258556 is an apocalyptic number.

It is an amenable number.

42258556 is a deficient number, since it is larger than the sum of its proper divisors (31740236).

42258556 is a wasteful number, since it uses less digits than its factorization.

42258556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620 (or 6618 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The square root of 42258556 is about 6500.6581205290. The cubic root of 42258556 is about 348.3144974794.

The spelling of 42258556 in words is "forty-two million, two hundred fifty-eight thousand, five hundred fifty-six".