42555206 has 4 divisors (see below), whose sum is σ = 63832812. Its totient is φ = 21277602.

The previous prime is 42555203. The next prime is 42555211. The reversal of 42555206 is 60255524.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10638800 + ... + 10638803.

It is an arithmetic number, because the mean of its divisors is an integer number (15958203).

Almost surely, 2^42555206 is an apocalyptic number.

42555206 is a deficient number, since it is larger than the sum of its proper divisors (21277606).

42555206 is a wasteful number, since it uses less digits than its factorization.

42555206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21277605.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 42555206 is about 6523.4351380235. The cubic root of 42555206 is about 349.1276397301.

The spelling of 42555206 in words is "forty-two million, five hundred fifty-five thousand, two hundred six".