54388819 has 2 divisors, whose sum is σ = 54388820. Its totient is φ = 54388818.

The previous prime is 54388801. The next prime is 54388843. The reversal of 54388819 is 91888345.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54388819 - 2¹¹ = 54386771 is a prime.

It is a super-2 number, since 2×54388819² = 5916287264429522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54382819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27194409 + 27194410.

It is an arithmetic number, because the mean of its divisors is an integer number (27194410).

Almost surely, 2^54388819 is an apocalyptic number.

54388819 is a deficient number, since it is larger than the sum of its proper divisors (1).

54388819 is an equidigital number, since it uses as much as digits as its factorization.

54388819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 46.

The square root of 54388819 is about 7374.8775583056. The cubic root of 54388819 is about 378.8813337668.

The spelling of 54388819 in words is "fifty-four million, three hundred eighty-eight thousand, eight hundred nineteen".