54091081 has 8 divisors (see below), whose sum is σ = 62114400. Its totient is φ = 46585440.

The previous prime is 54091073. The next prime is 54091087. The reversal of 54091081 is 18019045.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54091081 - 2³ = 54091073 is a prime.

It is a super-2 number, since 2×54091081² = 5851690087497122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54091087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129196 + ... + 129613.

It is an arithmetic number, because the mean of its divisors is an integer number (7764300).

Almost surely, 2^54091081 is an apocalyptic number.

It is an amenable number.

54091081 is a deficient number, since it is larger than the sum of its proper divisors (8023319).

54091081 is a wasteful number, since it uses less digits than its factorization.

54091081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258839.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 54091081 is about 7354.6638944278. The cubic root of 54091081 is about 378.1887046186.

Subtracting from 54091081 its reverse (18019045), we obtain a square (36072036 = 6006²).

The spelling of 54091081 in words is "fifty-four million, ninety-one thousand, eighty-one".