54203045021 has 12 divisors (see below), whose sum is σ = 57648724020. Its totient is φ = 50952867840.

The previous prime is 54203044981. The next prime is 54203045081. The reversal of 54203045021 is 12054030245.

It is a happy number.

54203045021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 11069985796 + 43133059225 = 105214^2 + 207685^2 .

It is not a de Polignac number, because 54203045021 - 2³⁰ = 53129303197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54203045081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126461 + ... + 352701.

It is an arithmetic number, because the mean of its divisors is an integer number (4804060335).

Almost surely, 2^54203045021 is an apocalyptic number.

It is an amenable number.

54203045021 is a deficient number, since it is larger than the sum of its proper divisors (3445678999).

54203045021 is a wasteful number, since it uses less digits than its factorization.

54203045021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227104 (or 227087 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 54203045021 its reverse (12054030245), we get a palindrome (66257075266).

The spelling of 54203045021 in words is "fifty-four billion, two hundred three million, forty-five thousand, twenty-one".