422566251 has 8 divisors (see below), whose sum is σ = 593075520. Its totient is φ = 266883912.

The previous prime is 422566231. The next prime is 422566273. The reversal of 422566251 is 152665224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422566251 - 2²⁷ = 288348523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422566231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3706665 + ... + 3706778.

It is an arithmetic number, because the mean of its divisors is an integer number (74134440).

Almost surely, 2^422566251 is an apocalyptic number.

422566251 is a deficient number, since it is larger than the sum of its proper divisors (170509269).

422566251 is a wasteful number, since it uses less digits than its factorization.

422566251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7413465.

The product of its digits is 28800, while the sum is 33.

The square root of 422566251 is about 20556.4162975943. The cubic root of 422566251 is about 750.4094066964.

The spelling of 422566251 in words is "four hundred twenty-two million, five hundred sixty-six thousand, two hundred fifty-one".