422542505 has 16 divisors (see below), whose sum is σ = 632168064. Its totient is φ = 263402880.

The previous prime is 422542457. The next prime is 422542507. The reversal of 422542505 is 505245224.

It is not a de Polignac number, because 422542505 - 2⁸ = 422542249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422542507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548372 + ... + 549141.

It is an arithmetic number, because the mean of its divisors is an integer number (39510504).

Almost surely, 2^422542505 is an apocalyptic number.

It is an amenable number.

422542505 is a deficient number, since it is larger than the sum of its proper divisors (209625559).

422542505 is a wasteful number, since it uses less digits than its factorization.

422542505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097536.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 422542505 is about 20555.8387082600. The cubic root of 422542505 is about 750.3953500797.

Adding to 422542505 its reverse (505245224), we get a palindrome (927787729).

The spelling of 422542505 in words is "four hundred twenty-two million, five hundred forty-two thousand, five hundred five".