53503400231 has 4 divisors (see below), whose sum is σ = 53513282592. Its totient is φ = 53493517872.

The previous prime is 53503400177. The next prime is 53503400299. The reversal of 53503400231 is 13200430535.

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 53503400231 - 2¹⁰ = 53503399207 is a prime.

It is a super-2 number, since 2×53503400231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53503400231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53503400831) 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, 4933055 + ... + 4943888.

It is an arithmetic number, because the mean of its divisors is an integer number (13378320648).

Almost surely, 2^53503400231 is an apocalyptic number.

53503400231 is a deficient number, since it is larger than the sum of its proper divisors (9882361).

53503400231 is an equidigital number, since it uses as much as digits as its factorization.

53503400231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882360.

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

Adding to 53503400231 its reverse (13200430535), we get a palindrome (66703830766).

The spelling of 53503400231 in words is "fifty-three billion, five hundred three million, four hundred thousand, two hundred thirty-one".