54320993 has 2 divisors, whose sum is σ = 54320994. Its totient is φ = 54320992.

The previous prime is 54320983. The next prime is 54321041. The reversal of 54320993 is 39902345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42876304 + 11444689 = 6548^2 + 3383^2 .

It is a cyclic number.

It is not a de Polignac number, because 54320993 - 2⁸ = 54320737 is a prime.

It is not a weakly prime, because it can be changed into another prime (54320923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27160496 + 27160497.

It is an arithmetic number, because the mean of its divisors is an integer number (27160497).

Almost surely, 2^54320993 is an apocalyptic number.

It is an amenable number.

54320993 is a deficient number, since it is larger than the sum of its proper divisors (1).

54320993 is an equidigital number, since it uses as much as digits as its factorization.

54320993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 54320993 is about 7370.2776745520. The cubic root of 54320993 is about 378.7237726141.

The spelling of 54320993 in words is "fifty-four million, three hundred twenty thousand, nine hundred ninety-three".