53503010243 has 4 divisors (see below), whose sum is σ = 53523333048. Its totient is φ = 53482687440.

The previous prime is 53503010191. The next prime is 53503010257. The reversal of 53503010243 is 34201030535.

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 53503010243 - 2¹² = 53503006147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53503012243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10157453 + ... + 10162718.

It is an arithmetic number, because the mean of its divisors is an integer number (13380833262).

Almost surely, 2^53503010243 is an apocalyptic number.

53503010243 is a deficient number, since it is larger than the sum of its proper divisors (20322805).

53503010243 is a wasteful number, since it uses less digits than its factorization.

53503010243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20322804.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 53503010243 its reverse (34201030535), we get a palindrome (87704040778).

The spelling of 53503010243 in words is "fifty-three billion, five hundred three million, ten thousand, two hundred forty-three".