54439871 has 2 divisors, whose sum is σ = 54439872. Its totient is φ = 54439870.

The previous prime is 54439867. The next prime is 54439943. The reversal of 54439871 is 17893445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54439871 - 2² = 54439867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54439171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27219935 + 27219936.

It is an arithmetic number, because the mean of its divisors is an integer number (27219936).

Almost surely, 2^54439871 is an apocalyptic number.

54439871 is a deficient number, since it is larger than the sum of its proper divisors (1).

54439871 is an equidigital number, since it uses as much as digits as its factorization.

54439871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 54439871 is about 7378.3379564777. The cubic root of 54439871 is about 378.9998421991. Note that the first 3 decimals are identical.

The spelling of 54439871 in words is "fifty-four million, four hundred thirty-nine thousand, eight hundred seventy-one".