54201321 has 12 divisors (see below), whose sum is σ = 82896372. Its totient is φ = 34008576.

The previous prime is 54201313. The next prime is 54201331. The reversal of 54201321 is 12310245.

It can be written as a sum of positive squares in 2 ways, for example, as 24651225 + 29550096 = 4965^2 + 5436^2 .

It is not a de Polignac number, because 54201321 - 2³ = 54201313 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 54201294 and 54201303.

It is not an unprimeable number, because it can be changed into a prime (54201311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176976 + ... + 177281.

It is an arithmetic number, because the mean of its divisors is an integer number (6908031).

Almost surely, 2^54201321 is an apocalyptic number.

54201321 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54201321 is a deficient number, since it is larger than the sum of its proper divisors (28695051).

54201321 is a wasteful number, since it uses less digits than its factorization.

54201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354280 (or 354277 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 54201321 is about 7362.1546438526. The cubic root of 54201321 is about 378.4454520096.

Adding to 54201321 its reverse (12310245), we get a palindrome (66511566).

The spelling of 54201321 in words is "fifty-four million, two hundred one thousand, three hundred twenty-one".