54866617 has 4 divisors (see below), whose sum is σ = 59087140. Its totient is φ = 50646096.

The previous prime is 54866573. The next prime is 54866627. The reversal of 54866617 is 71666845.

It is a happy number.

54866617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71666845 = 5 ⋅14333369.

It can be written as a sum of positive squares in 2 ways, for example, as 23270976 + 31595641 = 4824^2 + 5621^2 .

It is a cyclic number.

It is not a de Polignac number, because 54866617 - 2¹¹ = 54864569 is a prime.

It is a super-2 number, since 2×54866617² = 6020691322049378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54866627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110242 + ... + 2110267.

It is an arithmetic number, because the mean of its divisors is an integer number (14771785).

Almost surely, 2^54866617 is an apocalyptic number.

It is an amenable number.

54866617 is a deficient number, since it is larger than the sum of its proper divisors (4220523).

54866617 is a wasteful number, since it uses less digits than its factorization.

54866617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220522.

The product of its digits is 241920, while the sum is 43.

The square root of 54866617 is about 7407.2003483097. The cubic root of 54866617 is about 379.9875734625.

The spelling of 54866617 in words is "fifty-four million, eight hundred sixty-six thousand, six hundred seventeen".