61224563 has 4 divisors (see below), whose sum is σ = 61280880. Its totient is φ = 61168248.

The previous prime is 61224523. The next prime is 61224587. The reversal of 61224563 is 36542216.

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

It is a cyclic number.

It is not a de Polignac number, because 61224563 - 2¹⁴ = 61208179 is a prime.

It is a super-2 number, since 2×61224563² = 7496894229081938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61224523) 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, 26495 + ... + 28712.

It is an arithmetic number, because the mean of its divisors is an integer number (15320220).

Almost surely, 2^61224563 is an apocalyptic number.

61224563 is a deficient number, since it is larger than the sum of its proper divisors (56317).

61224563 is a wasteful number, since it uses less digits than its factorization.

61224563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56316.

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

The square root of 61224563 is about 7824.6126421696. The cubic root of 61224563 is about 394.1321822807.

Adding to 61224563 its reverse (36542216), we get a palindrome (97766779).

The spelling of 61224563 in words is "sixty-one million, two hundred twenty-four thousand, five hundred sixty-three".