54551321 has 8 divisors (see below), whose sum is σ = 59564064. Its totient is φ = 49547520.

The previous prime is 54551303. The next prime is 54551323. The reversal of 54551321 is 12315545.

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

It is not a de Polignac number, because 54551321 - 2¹⁴ = 54534937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54551323) 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, 22070 + ... + 24416.

It is an arithmetic number, because the mean of its divisors is an integer number (7445508).

Almost surely, 2^54551321 is an apocalyptic number.

It is an amenable number.

54551321 is a deficient number, since it is larger than the sum of its proper divisors (5012743).

54551321 is a wasteful number, since it uses less digits than its factorization.

54551321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471.

The product of its digits is 3000, while the sum is 26.

The square root of 54551321 is about 7385.8866089319. The cubic root of 54551321 is about 379.2582970163.

Adding to 54551321 its reverse (12315545), we get a palindrome (66866866).

It can be divided in two parts, 54551 and 321, that added together give a cube (54872 = 38³).

The spelling of 54551321 in words is "fifty-four million, five hundred fifty-one thousand, three hundred twenty-one".