53503433313 has 32 divisors (see below), whose sum is σ = 83095372800. Its totient is φ = 30295151040.

The previous prime is 53503433279. The next prime is 53503433341. The reversal of 53503433313 is 31333430535.

It is not a de Polignac number, because 53503433313 - 2⁸ = 53503433057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (53503433213) 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 31 ways as a sum of consecutive naturals, for example, 787038 + ... + 852311.

It is an arithmetic number, because the mean of its divisors is an integer number (2596730400).

Almost surely, 2^53503433313 is an apocalyptic number.

It is an amenable number.

53503433313 is a deficient number, since it is larger than the sum of its proper divisors (29591939487).

53503433313 is a wasteful number, since it uses less digits than its factorization.

53503433313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639429.

The product of its (nonzero) digits is 72900, while the sum is 33.

Adding to 53503433313 its reverse (31333430535), we get a palindrome (84836863848).

The spelling of 53503433313 in words is "fifty-three billion, five hundred three million, four hundred thirty-three thousand, three hundred thirteen".