63505343 has 4 divisors (see below), whose sum is σ = 69278568. Its totient is φ = 57732120.

The previous prime is 63505333. The next prime is 63505349. The reversal of 63505343 is 34350536.

It is a happy number.

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 63505343 - 2⁶ = 63505279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63505349) 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, 2886596 + ... + 2886617.

It is an arithmetic number, because the mean of its divisors is an integer number (17319642).

Almost surely, 2^63505343 is an apocalyptic number.

63505343 is a deficient number, since it is larger than the sum of its proper divisors (5773225).

63505343 is a wasteful number, since it uses less digits than its factorization.

63505343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773224.

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 63505343 is about 7969.0239678395. The cubic root of 63505343 is about 398.9667981158.

Adding to 63505343 its reverse (34350536), we get a palindrome (97855879).

The spelling of 63505343 in words is "sixty-three million, five hundred five thousand, three hundred forty-three".