54439081 has 4 divisors (see below), whose sum is σ = 54539152. Its totient is φ = 54339012.

The previous prime is 54439067. The next prime is 54439111. The reversal of 54439081 is 18093445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54439081 - 2²⁵ = 20884649 is a prime.

It is a super-2 number, since 2×54439081² = 5927227080249122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54439031) 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, 49215 + ... + 50308.

It is an arithmetic number, because the mean of its divisors is an integer number (13634788).

Almost surely, 2^54439081 is an apocalyptic number.

It is an amenable number.

54439081 is a deficient number, since it is larger than the sum of its proper divisors (100071).

54439081 is an equidigital number, since it uses as much as digits as its factorization.

54439081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100070.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 54439081 is about 7378.2844211917. The cubic root of 54439081 is about 378.9980089146.

The spelling of 54439081 in words is "fifty-four million, four hundred thirty-nine thousand, eighty-one".