422552561 has 16 divisors (see below), whose sum is σ = 454608000. Its totient is φ = 391350528.

The previous prime is 422552549. The next prime is 422552563. The reversal of 422552561 is 165255224.

It is a cyclic number.

It is not a de Polignac number, because 422552561 - 2⁶ = 422552497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422552563) 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, 301340 + ... + 302738.

It is an arithmetic number, because the mean of its divisors is an integer number (28413000).

Almost surely, 2^422552561 is an apocalyptic number.

It is an amenable number.

422552561 is a deficient number, since it is larger than the sum of its proper divisors (32055439).

422552561 is a wasteful number, since it uses less digits than its factorization.

422552561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688.

The product of its digits is 24000, while the sum is 32.

The square root of 422552561 is about 20556.0833088407. The cubic root of 422552561 is about 750.4013028660.

The spelling of 422552561 in words is "four hundred twenty-two million, five hundred fifty-two thousand, five hundred sixty-one".