53503021453 has 24 divisors (see below), whose sum is σ = 63200939712. Its totient is φ = 45151089984.

The previous prime is 53503021339. The next prime is 53503021483. The reversal of 53503021453 is 35412030535.

It is not a de Polignac number, because 53503021453 - 2¹³ = 53503013261 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 (53503021483) 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 23 ways as a sum of consecutive naturals, for example, 8903776 + ... + 8909782.

It is an arithmetic number, because the mean of its divisors is an integer number (2633372488).

Almost surely, 2^53503021453 is an apocalyptic number.

It is an amenable number.

53503021453 is a deficient number, since it is larger than the sum of its proper divisors (9697918259).

53503021453 is a wasteful number, since it uses less digits than its factorization.

53503021453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8801 (or 8794 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 53503021453 its reverse (35412030535), we get a palindrome (88915051988).

The spelling of 53503021453 in words is "fifty-three billion, five hundred three million, twenty-one thousand, four hundred fifty-three".