54436321 has 2 divisors, whose sum is σ = 54436322. Its totient is φ = 54436320.

The previous prime is 54436309. The next prime is 54436379. The reversal of 54436321 is 12363445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53363025 + 1073296 = 7305^2 + 1036^2 .

It is a cyclic number.

It is not a de Polignac number, because 54436321 - 2²¹ = 52339169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54436321.

It is not a weakly prime, because it can be changed into another prime (54436301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27218160 + 27218161.

It is an arithmetic number, because the mean of its divisors is an integer number (27218161).

Almost surely, 2^54436321 is an apocalyptic number.

It is an amenable number.

54436321 is a deficient number, since it is larger than the sum of its proper divisors (1).

54436321 is an equidigital number, since it uses as much as digits as its factorization.

54436321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 54436321 is about 7378.0973834722. The cubic root of 54436321 is about 378.9916038825.

Adding to 54436321 its reverse (12363445), we get a palindrome (66799766).

The spelling of 54436321 in words is "fifty-four million, four hundred thirty-six thousand, three hundred twenty-one".