424521065 has 4 divisors (see below), whose sum is σ = 509425284. Its totient is φ = 339616848.

The previous prime is 424521049. The next prime is 424521103. The reversal of 424521065 is 560125424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193237801 + 231283264 = 13901^2 + 15208^2 .

It is a cyclic number.

It is not a de Polignac number, because 424521065 - 2⁴ = 424521049 is a prime.

It is a super-3 number, since 3×424521065³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42452102 + ... + 42452111.

It is an arithmetic number, because the mean of its divisors is an integer number (127356321).

Almost surely, 2^424521065 is an apocalyptic number.

It is an amenable number.

424521065 is a deficient number, since it is larger than the sum of its proper divisors (84904219).

424521065 is an equidigital number, since it uses as much as digits as its factorization.

424521065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84904218.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 424521065 is about 20603.9089737846. The cubic root of 424521065 is about 751.5647715680.

Adding to 424521065 its reverse (560125424), we get a palindrome (984646489).

The spelling of 424521065 in words is "four hundred twenty-four million, five hundred twenty-one thousand, sixty-five".