53503355423 has 4 divisors (see below), whose sum is σ = 61146691920. Its totient is φ = 45860018928.

The previous prime is 53503355333. The next prime is 53503355431. The reversal of 53503355423 is 32455330535.

53503355423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53503355423 - 2¹² = 53503351327 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 (53503355443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3821668238 + ... + 3821668251.

It is an arithmetic number, because the mean of its divisors is an integer number (15286672980).

Almost surely, 2^53503355423 is an apocalyptic number.

53503355423 is a deficient number, since it is larger than the sum of its proper divisors (7643336497).

53503355423 is an equidigital number, since it uses as much as digits as its factorization.

53503355423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643336496.

The product of its (nonzero) digits is 405000, while the sum is 38.

Adding to 53503355423 its reverse (32455330535), we get a palindrome (85958685958).

The spelling of 53503355423 in words is "fifty-three billion, five hundred three million, three hundred fifty-five thousand, four hundred twenty-three".