54597661589 has 4 divisors (see below), whose sum is σ = 54598350156. Its totient is φ = 54596973024.

The previous prime is 54597661477. The next prime is 54597661631. The reversal of 54597661589 is 98516679545.

54597661589 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, and also an emirpimes, since its reverse is a distinct semiprime: 98516679545 = 5 ⋅19703335909.

It can be written as a sum of positive squares in 2 ways, for example, as 13975259089 + 40622402500 = 118217^2 + 201550^2 .

It is a cyclic number.

It is not a de Polignac number, because 54597661589 - 2²⁰ = 54596613013 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 (54597661189) 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, 207134 + ... + 389999.

It is an arithmetic number, because the mean of its divisors is an integer number (13649587539).

Almost surely, 2^54597661589 is an apocalyptic number.

It is an amenable number.

54597661589 is a deficient number, since it is larger than the sum of its proper divisors (688567).

54597661589 is an equidigital number, since it uses as much as digits as its factorization.

54597661589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688566.

The product of its digits is 81648000, while the sum is 65.

The spelling of 54597661589 in words is "fifty-four billion, five hundred ninety-seven million, six hundred sixty-one thousand, five hundred eighty-nine".