53302643 has 4 divisors (see below), whose sum is σ = 53977440. Its totient is φ = 52627848.

The previous prime is 53302597. The next prime is 53302651. The reversal of 53302643 is 34620335.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53302643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53302663) 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, 337280 + ... + 337437.

It is an arithmetic number, because the mean of its divisors is an integer number (13494360).

Almost surely, 2^53302643 is an apocalyptic number.

53302643 is a deficient number, since it is larger than the sum of its proper divisors (674797).

53302643 is an equidigital number, since it uses as much as digits as its factorization.

53302643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674796.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 53302643 is about 7300.8659075482. The cubic root of 53302643 is about 376.3421959251.

Adding to 53302643 its reverse (34620335), we get a palindrome (87922978).

The spelling of 53302643 in words is "fifty-three million, three hundred two thousand, six hundred forty-three".