54066817 has 16 divisors (see below), whose sum is σ = 67685760. Its totient is φ = 42110208.

The previous prime is 54066811. The next prime is 54066829. The reversal of 54066817 is 71866045.

It is not a de Polignac number, because 54066817 - 2⁷ = 54066689 is a prime.

It is a super-2 number, since 2×54066817² = 5846441401022978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54066811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4383 + ... + 11284.

It is an arithmetic number, because the mean of its divisors is an integer number (4230360).

Almost surely, 2^54066817 is an apocalyptic number.

It is an amenable number.

54066817 is a deficient number, since it is larger than the sum of its proper divisors (13618943).

54066817 is a wasteful number, since it uses less digits than its factorization.

54066817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15720.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 54066817 is about 7353.0141438732. The cubic root of 54066817 is about 378.1321472774.

The spelling of 54066817 in words is "fifty-four million, sixty-six thousand, eight hundred seventeen".