42255555 has 16 divisors (see below), whose sum is σ = 67772160. Its totient is φ = 22481888.

The previous prime is 42255553. The next prime is 42255569. The reversal of 42255555 is 55555224.

It is a cyclic number.

It is not a de Polignac number, because 42255555 - 2¹ = 42255553 is a prime.

42255555 is a modest number, since divided by 5555 gives 4225 as remainder.

It is not an unprimeable number, because it can be changed into a prime (42255553) 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, 3466 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (4235760).

Almost surely, 2^42255555 is an apocalyptic number.

42255555 is a deficient number, since it is larger than the sum of its proper divisors (25516605).

42255555 is a wasteful number, since it uses less digits than its factorization.

42255555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810.

The product of its digits is 50000, while the sum is 33.

The square root of 42255555 is about 6500.4272936477. The cubic root of 42255555 is about 348.3062520758.

The spelling of 42255555 in words is "forty-two million, two hundred fifty-five thousand, five hundred fifty-five".