54418681 has 4 divisors (see below), whose sum is σ = 54443664. Its totient is φ = 54393700.

The previous prime is 54418669. The next prime is 54418687. The reversal of 54418681 is 18681445.

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 54418681 - 2¹¹ = 54416633 is a prime.

It is a super-2 number, since 2×54418681² = 5922785683559522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54418681.

It is not an unprimeable number, because it can be changed into a prime (54418687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8875 + ... + 13696.

It is an arithmetic number, because the mean of its divisors is an integer number (13610916).

Almost surely, 2^54418681 is an apocalyptic number.

It is an amenable number.

54418681 is a deficient number, since it is larger than the sum of its proper divisors (24983).

54418681 is a wasteful number, since it uses less digits than its factorization.

54418681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24982.

The product of its digits is 30720, while the sum is 37.

The square root of 54418681 is about 7376.9018564706. The cubic root of 54418681 is about 378.9506622585.

The spelling of 54418681 in words is "fifty-four million, four hundred eighteen thousand, six hundred eighty-one".