54438894425 has 6 divisors (see below), whose sum is σ = 67504229118. Its totient is φ = 43551115520.

The previous prime is 54438894421. The next prime is 54438894431. The reversal of 54438894425 is 52449883445.

It can be written as a sum of positive squares in 3 ways, for example, as 720170896 + 53718723529 = 26836^2 + 231773^2 .

It is not a de Polignac number, because 54438894425 - 2² = 54438894421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54438894421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1088777864 + ... + 1088777913.

It is an arithmetic number, because the mean of its divisors is an integer number (11250704853).

Almost surely, 2^54438894425 is an apocalyptic number.

It is an amenable number.

54438894425 is a deficient number, since it is larger than the sum of its proper divisors (13065334693).

54438894425 is a wasteful number, since it uses less digits than its factorization.

54438894425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177555787 (or 2177555782 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 56.

The spelling of 54438894425 in words is "fifty-four billion, four hundred thirty-eight million, eight hundred ninety-four thousand, four hundred twenty-five".