422512513 has 6 divisors (see below), whose sum is σ = 437585174. Its totient is φ = 407942304.

The previous prime is 422512501. The next prime is 422512523. The reversal of 422512513 is 315215224.

It can be written as a sum of positive squares in 3 ways, for example, as 86266944 + 336245569 = 9288^2 + 18337^2 .

It is not a de Polignac number, because 422512513 - 2¹³ = 422504321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422512523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250356 + ... + 252037.

Almost surely, 2^422512513 is an apocalyptic number.

It is an amenable number.

422512513 is a deficient number, since it is larger than the sum of its proper divisors (15072661).

422512513 is an equidigital number, since it uses as much as digits as its factorization.

422512513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502451 (or 502422 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 422512513 is about 20555.1091702282. The cubic root of 422512513 is about 750.3775953453.

Adding to 422512513 its reverse (315215224), we get a palindrome (737727737).

The spelling of 422512513 in words is "four hundred twenty-two million, five hundred twelve thousand, five hundred thirteen".