54328993 has 2 divisors, whose sum is σ = 54328994. Its totient is φ = 54328992.

The previous prime is 54328969. The next prime is 54329003. The reversal of 54328993 is 39982345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29408929 + 24920064 = 5423^2 + 4992^2 .

It is a cyclic number.

It is not a de Polignac number, because 54328993 - 2¹³ = 54320801 is a prime.

It is not a weakly prime, because it can be changed into another prime (54328693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27164496 + 27164497.

It is an arithmetic number, because the mean of its divisors is an integer number (27164497).

Almost surely, 2^54328993 is an apocalyptic number.

It is an amenable number.

54328993 is a deficient number, since it is larger than the sum of its proper divisors (1).

54328993 is an equidigital number, since it uses as much as digits as its factorization.

54328993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 54328993 is about 7370.8203749651. The cubic root of 54328993 is about 378.7423635940.

The spelling of 54328993 in words is "fifty-four million, three hundred twenty-eight thousand, nine hundred ninety-three".