54609013 has 4 divisors (see below), whose sum is σ = 54659020. Its totient is φ = 54559008.

The previous prime is 54608989. The next prime is 54609017. The reversal of 54609013 is 31090645.

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 14691889 + 39917124 = 3833^2 + 6318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54609013 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 (54609017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23328 + ... + 25561.

It is an arithmetic number, because the mean of its divisors is an integer number (13664755).

Almost surely, 2^54609013 is an apocalyptic number.

It is an amenable number.

54609013 is a deficient number, since it is larger than the sum of its proper divisors (50007).

54609013 is a wasteful number, since it uses less digits than its factorization.

54609013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50006.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 54609013 is about 7389.7911337195. The cubic root of 54609013 is about 379.3919476808.

Adding to 54609013 its reverse (31090645), we get a palindrome (85699658).

The spelling of 54609013 in words is "fifty-four million, six hundred nine thousand, thirteen".