42317455 has 16 divisors (see below), whose sum is σ = 53051040. Its totient is φ = 32372352.

The previous prime is 42317441. The next prime is 42317501. The reversal of 42317455 is 55471324.

It is a cyclic number.

It is not a de Polignac number, because 42317455 - 2⁵ = 42317423 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8977 + ... + 12853.

It is an arithmetic number, because the mean of its divisors is an integer number (3315690).

Almost surely, 2^42317455 is an apocalyptic number.

42317455 is a deficient number, since it is larger than the sum of its proper divisors (10733585).

42317455 is a wasteful number, since it uses less digits than its factorization.

42317455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978.

The product of its digits is 16800, while the sum is 31.

The square root of 42317455 is about 6505.1867767190. The cubic root of 42317455 is about 348.4762465911.

Adding to 42317455 its reverse (55471324), we get a palindrome (97788779).

The spelling of 42317455 in words is "forty-two million, three hundred seventeen thousand, four hundred fifty-five".