63224561 has 4 divisors (see below), whose sum is σ = 63292272. Its totient is φ = 63156852.

The previous prime is 63224549. The next prime is 63224563. The reversal of 63224561 is 16542236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63224561 - 2¹⁴ = 63208177 is a prime.

It is a super-2 number, since 2×63224561² = 7994690227285442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63224563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32435 + ... + 34328.

It is an arithmetic number, because the mean of its divisors is an integer number (15823068).

Almost surely, 2^63224561 is an apocalyptic number.

It is an amenable number.

63224561 is a deficient number, since it is larger than the sum of its proper divisors (67711).

63224561 is an equidigital number, since it uses as much as digits as its factorization.

63224561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67710.

The product of its digits is 8640, while the sum is 29.

The square root of 63224561 is about 7951.3873632216. The cubic root of 63224561 is about 398.3779332231.

Adding to 63224561 its reverse (16542236), we get a palindrome (79766797).

The spelling of 63224561 in words is "sixty-three million, two hundred twenty-four thousand, five hundred sixty-one".