54055681 has 8 divisors (see below), whose sum is σ = 58351680. Its totient is φ = 49921872.

The previous prime is 54055669. The next prime is 54055691. The reversal of 54055681 is 18655045.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 54055681 - 2⁷ = 54055553 is a prime.

It is a super-2 number, since 2×54055681² = 5844033296747522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54055621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39855 + ... + 41188.

It is an arithmetic number, because the mean of its divisors is an integer number (7293960).

Almost surely, 2^54055681 is an apocalyptic number.

It is an amenable number.

54055681 is a deficient number, since it is larger than the sum of its proper divisors (4295999).

54055681 is a wasteful number, since it uses less digits than its factorization.

54055681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81095.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 54055681 is about 7352.2568643920. The cubic root of 54055681 is about 378.1061845338.

The spelling of 54055681 in words is "fifty-four million, fifty-five thousand, six hundred eighty-one".