42508363 has 2 divisors, whose sum is σ = 42508364. Its totient is φ = 42508362.

The previous prime is 42508357. The next prime is 42508391. The reversal of 42508363 is 36380524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42508363 - 2⁵ = 42508331 is a prime.

It is not a weakly prime, because it can be changed into another prime (42508343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21254181 + 21254182.

It is an arithmetic number, because the mean of its divisors is an integer number (21254182).

Almost surely, 2^42508363 is an apocalyptic number.

42508363 is a deficient number, since it is larger than the sum of its proper divisors (1).

42508363 is an equidigital number, since it uses as much as digits as its factorization.

42508363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 42508363 is about 6519.8437864722. The cubic root of 42508363 is about 348.9994909722. Note that the first 3 decimals are identical.

Adding to 42508363 its reverse (36380524), we get a palindrome (78888887).

The spelling of 42508363 in words is "forty-two million, five hundred eight thousand, three hundred sixty-three".