54609331409 has 8 divisors (see below), whose sum is σ = 55424892072. Its totient is φ = 53795594880.

The previous prime is 54609331391. The next prime is 54609331459. The reversal of 54609331409 is 90413390645.

54609331409 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 4 ways, for example, as 13249161025 + 41360170384 = 115105^2 + 203372^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54609331409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54609331409.

It is not an unprimeable number, because it can be changed into a prime (54609331459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395654 + ... + 515519.

It is an arithmetic number, because the mean of its divisors is an integer number (6928111509).

Almost surely, 2^54609331409 is an apocalyptic number.

It is an amenable number.

54609331409 is a deficient number, since it is larger than the sum of its proper divisors (815560663).

54609331409 is an equidigital number, since it uses as much as digits as its factorization.

54609331409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912067.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 54609331409 in words is "fifty-four billion, six hundred nine million, three hundred thirty-one thousand, four hundred nine".