42455471 has 2 divisors, whose sum is σ = 42455472. Its totient is φ = 42455470.

The previous prime is 42455423. The next prime is 42455489. The reversal of 42455471 is 17455424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42455471 - 2¹⁴ = 42439087 is a prime.

It is a super-3 number, since 3×42455471³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42454471) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21227735 + 21227736.

It is an arithmetic number, because the mean of its divisors is an integer number (21227736).

Almost surely, 2^42455471 is an apocalyptic number.

42455471 is a deficient number, since it is larger than the sum of its proper divisors (1).

42455471 is an equidigital number, since it uses as much as digits as its factorization.

42455471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 32.

The square root of 42455471 is about 6515.7862917686. The cubic root of 42455471 is about 348.8546807028.

The spelling of 42455471 in words is "forty-two million, four hundred fifty-five thousand, four hundred seventy-one".