54242321503 has 4 divisors (see below), whose sum is σ = 54242832520. Its totient is φ = 54241810488.

The previous prime is 54242321501. The next prime is 54242321533. The reversal of 54242321503 is 30512324245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 54242321503 - 2¹ = 54242321501 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 (54242321501) 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, 29868 + ... + 330721.

It is an arithmetic number, because the mean of its divisors is an integer number (13560708130).

Almost surely, 2^54242321503 is an apocalyptic number.

54242321503 is a deficient number, since it is larger than the sum of its proper divisors (511017).

54242321503 is a wasteful number, since it uses less digits than its factorization.

54242321503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511016.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 54242321503 its reverse (30512324245), we get a palindrome (84754645748).

The spelling of 54242321503 in words is "fifty-four billion, two hundred forty-two million, three hundred twenty-one thousand, five hundred three".