54439939 has 4 divisors (see below), whose sum is σ = 54583960. Its totient is φ = 54296298.

The previous prime is 54439871. The next prime is 54439943. The reversal of 54439939 is 93993445.

The cubic root of 54439939 is 379.

It is a perfect power (a cube), and thus also a powerful number.

It is not a de Polignac number, because 54439939 - 2¹³ = 54431747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54439039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143452 + ... + 143830.

It is an arithmetic number, because the mean of its divisors is an integer number (13645990).

Almost surely, 2^54439939 is an apocalyptic number.

54439939 is a deficient number, since it is larger than the sum of its proper divisors (144021).

54439939 is an frugal number, since it uses more digits than its factorization.

54439939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 379 counting only the distinct ones).

The product of its digits is 524880, while the sum is 46.

The square root of 54439939 is about 7378.3425645601.

The spelling of 54439939 in words is "fifty-four million, four hundred thirty-nine thousand, nine hundred thirty-nine".