42555205 has 16 divisors (see below), whose sum is σ = 63667584. Its totient is φ = 26527680.

The previous prime is 42555203. The next prime is 42555211. The reversal of 42555205 is 50255524.

It is not a de Polignac number, because 42555205 - 2¹ = 42555203 is a prime.

It is a Duffinian number.

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 in 15 ways as a sum of consecutive naturals, for example, 54882 + ... + 55651.

It is an arithmetic number, because the mean of its divisors is an integer number (3979224).

Almost surely, 2^42555205 is an apocalyptic number.

It is an amenable number.

42555205 is a deficient number, since it is larger than the sum of its proper divisors (21112379).

42555205 is a wasteful number, since it uses less digits than its factorization.

42555205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110556.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 42555205 is about 6523.4350613768. The cubic root of 42555205 is about 349.1276369954.

The spelling of 42555205 in words is "forty-two million, five hundred fifty-five thousand, two hundred five".