422501 has 8 divisors (see below), whose sum is σ = 463320. Its totient is φ = 383488.

The previous prime is 422479. The next prime is 422537. The reversal of 422501 is 105224.

It is a Cunningham number, because it is equal to 650²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 220900 + 201601 = 470^2 + 449^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 422501 - 2¹⁴ = 406117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422551) 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, 65 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (57915).

2⁴²²⁵⁰¹ is an apocalyptic number.

It is an amenable number.

422501 is a deficient number, since it is larger than the sum of its proper divisors (40819).

422501 is a wasteful number, since it uses less digits than its factorization.

422501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 422501 is about 650.0007692303. Note that the first 3 decimals coincide. The cubic root of 422501 is about 75.0370779629.

Adding to 422501 its reverse (105224), we get a palindrome (527725).

The spelling of 422501 in words is "four hundred twenty-two thousand, five hundred one".