54103324021 has 4 divisors (see below), whose sum is σ = 54416060172. Its totient is φ = 53790587872.

The previous prime is 54103324003. The next prime is 54103324057. The reversal of 54103324021 is 12042330145.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40195839121 + 13907484900 = 200489^2 + 117930^2 .

It is a cyclic number.

It is not a de Polignac number, because 54103324021 - 2¹¹ = 54103321973 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 (54103324061) 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, 156367816 + ... + 156368161.

It is an arithmetic number, because the mean of its divisors is an integer number (13604015043).

Almost surely, 2^54103324021 is an apocalyptic number.

It is an amenable number.

54103324021 is a deficient number, since it is larger than the sum of its proper divisors (312736151).

54103324021 is a wasteful number, since it uses less digits than its factorization.

54103324021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312736150.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 54103324021 its reverse (12042330145), we get a palindrome (66145654166).

The spelling of 54103324021 in words is "fifty-four billion, one hundred three million, three hundred twenty-four thousand, twenty-one".