42205655 has 8 divisors (see below), whose sum is σ = 50727600. Its totient is φ = 33710656.

The previous prime is 42205637. The next prime is 42205673. The reversal of 42205655 is 55650224.

It is an interprime number because it is at equal distance from previous prime (42205637) and next prime (42205673).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42205655 - 2¹⁴ = 42189271 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3110 + ... + 9699.

It is an arithmetic number, because the mean of its divisors is an integer number (6340950).

Almost surely, 2^42205655 is an apocalyptic number.

42205655 is a deficient number, since it is larger than the sum of its proper divisors (8521945).

42205655 is a wasteful number, since it uses less digits than its factorization.

42205655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13473.

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

The square root of 42205655 is about 6496.5879506092. The cubic root of 42205655 is about 348.1690919788.

Adding to 42205655 its reverse (55650224), we get a palindrome (97855879).

The spelling of 42205655 in words is "forty-two million, two hundred five thousand, six hundred fifty-five".