42223513 has 2 divisors, whose sum is σ = 42223514. Its totient is φ = 42223512.

The previous prime is 42223429. The next prime is 42223523. The reversal of 42223513 is 31532224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41434969 + 788544 = 6437^2 + 888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42223513 is a prime.

It is a super-2 number, since 2×42223513² = 3565650100122338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42223523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21111756 + 21111757.

It is an arithmetic number, because the mean of its divisors is an integer number (21111757).

Almost surely, 2^42223513 is an apocalyptic number.

It is an amenable number.

42223513 is a deficient number, since it is larger than the sum of its proper divisors (1).

42223513 is an equidigital number, since it uses as much as digits as its factorization.

42223513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 22.

The square root of 42223513 is about 6497.9622190345. The cubic root of 42223513 is about 348.2181906673.

Adding to 42223513 its reverse (31532224), we get a palindrome (73755737).

The spelling of 42223513 in words is "forty-two million, two hundred twenty-three thousand, five hundred thirteen".