54617321 has 8 divisors (see below), whose sum is σ = 59725344. Its totient is φ = 49533120.

The previous prime is 54617309. The next prime is 54617323. The reversal of 54617321 is 12371645.

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

It is a cyclic number.

It is not a de Polignac number, because 54617321 - 2¹⁸ = 54355177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54617323) 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, 971 + ... + 10496.

It is an arithmetic number, because the mean of its divisors is an integer number (7465668).

Almost surely, 2^54617321 is an apocalyptic number.

It is an amenable number.

54617321 is a deficient number, since it is larger than the sum of its proper divisors (5108023).

54617321 is a wasteful number, since it uses less digits than its factorization.

54617321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911.

The product of its digits is 5040, while the sum is 29.

The square root of 54617321 is about 7390.3532391896. The cubic root of 54617321 is about 379.4111864371.

Adding to 54617321 its reverse (12371645), we get a palindrome (66988966).

The spelling of 54617321 in words is "fifty-four million, six hundred seventeen thousand, three hundred twenty-one".