53303243 has 8 divisors (see below), whose sum is σ = 61090560. Its totient is φ = 45559080.

The previous prime is 53303209. The next prime is 53303249. The reversal of 53303243 is 34230335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53303243 - 2¹⁰ = 53302219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53303249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8093 + ... + 13118.

It is an arithmetic number, because the mean of its divisors is an integer number (7636320).

Almost surely, 2^53303243 is an apocalyptic number.

53303243 is a deficient number, since it is larger than the sum of its proper divisors (7787317).

53303243 is a wasteful number, since it uses less digits than its factorization.

53303243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21577.

The product of its (nonzero) digits is 3240, while the sum is 23.

The square root of 53303243 is about 7300.9069984489. The cubic root of 53303243 is about 376.3436080156.

Adding to 53303243 its reverse (34230335), we get a palindrome (87533578).

The spelling of 53303243 in words is "fifty-three million, three hundred three thousand, two hundred forty-three".