54400039 has 2 divisors, whose sum is σ = 54400040. Its totient is φ = 54400038.

The previous prime is 54399997. The next prime is 54400057. The reversal of 54400039 is 93000445.

54400039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54400039 - 2¹¹ = 54397991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54399986 and 54400022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54400079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27200019 + 27200020.

It is an arithmetic number, because the mean of its divisors is an integer number (27200020).

Almost surely, 2^54400039 is an apocalyptic number.

54400039 is a deficient number, since it is larger than the sum of its proper divisors (1).

54400039 is an equidigital number, since it uses as much as digits as its factorization.

54400039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 54400039 is about 7375.6382096738. The cubic root of 54400039 is about 378.9073854220.

It can be divided in two parts, 5 and 4400039, that added together give a palindrome (4400044).

The spelling of 54400039 in words is "fifty-four million, four hundred thousand, thirty-nine".