54168516 has 18 divisors (see below), whose sum is σ = 136926062. Its totient is φ = 18056160.

The previous prime is 54168497. The next prime is 54168529. The reversal of 54168516 is 61586145.

54168516 is a `hidden beast` number, since 541 + 68 + 51 + 6 = 666.

54168516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 48860100 + 5308416 = 6990^2 + 2304^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1504681 = 54168516 / (5 + 4 + 1 + 6 + 8 + 5 + 1 + 6).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 752305 + ... + 752376.

Almost surely, 2^54168516 is an apocalyptic number.

It is an amenable number.

54168516 is an abundant number, since it is smaller than the sum of its proper divisors (82757546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54168516 is a wasteful number, since it uses less digits than its factorization.

54168516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504691 (or 1504686 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 54168516 is about 7359.9263583272. The cubic root of 54168516 is about 378.3690860445.

The spelling of 54168516 in words is "fifty-four million, one hundred sixty-eight thousand, five hundred sixteen".