63550243 has 2 divisors, whose sum is σ = 63550244. Its totient is φ = 63550242.

The previous prime is 63550241. The next prime is 63550271. The reversal of 63550243 is 34205536.

It is an a-pointer prime, because the next prime (63550271) can be obtained adding 63550243 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63550243 - 2¹ = 63550241 is a prime.

Together with 63550241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63550241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31775121 + 31775122.

It is an arithmetic number, because the mean of its divisors is an integer number (31775122).

Almost surely, 2^63550243 is an apocalyptic number.

63550243 is a deficient number, since it is larger than the sum of its proper divisors (1).

63550243 is an equidigital number, since it uses as much as digits as its factorization.

63550243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 63550243 is about 7971.8406281109. The cubic root of 63550243 is about 399.0608027473.

Adding to 63550243 its reverse (34205536), we get a palindrome (97755779).

The spelling of 63550243 in words is "sixty-three million, five hundred fifty thousand, two hundred forty-three".