54206561 has 8 divisors (see below), whose sum is σ = 57281280. Its totient is φ = 51191712.

The previous prime is 54206549. The next prime is 54206567. The reversal of 54206561 is 16560245.

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 54206561 - 2⁶ = 54206497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54206567) 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, 13100 + ... + 16733.

It is an arithmetic number, because the mean of its divisors is an integer number (7160160).

Almost surely, 2^54206561 is an apocalyptic number.

It is an amenable number.

54206561 is a deficient number, since it is larger than the sum of its proper divisors (3074719).

54206561 is a wasteful number, since it uses less digits than its factorization.

54206561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29935.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 54206561 is about 7362.5105093304. The cubic root of 54206561 is about 378.4576472245.

The spelling of 54206561 in words is "fifty-four million, two hundred six thousand, five hundred sixty-one".