54682561 has 4 divisors (see below), whose sum is σ = 56016324. Its totient is φ = 53348800.

The previous prime is 54682493. The next prime is 54682577. The reversal of 54682561 is 16528645.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6031936 + 48650625 = 2456^2 + 6975^2 .

It is a cyclic number.

It is not a de Polignac number, because 54682561 - 2⁹ = 54682049 is a prime.

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 54682561.

It is not an unprimeable number, because it can be changed into a prime (54682261) 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 3 ways as a sum of consecutive naturals, for example, 666820 + ... + 666901.

It is an arithmetic number, because the mean of its divisors is an integer number (14004081).

Almost surely, 2^54682561 is an apocalyptic number.

It is an amenable number.

54682561 is a deficient number, since it is larger than the sum of its proper divisors (1333763).

54682561 is a wasteful number, since it uses less digits than its factorization.

54682561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333762.

The product of its digits is 57600, while the sum is 37.

The square root of 54682561 is about 7394.7657839853. The cubic root of 54682561 is about 379.5621943115.

The spelling of 54682561 in words is "fifty-four million, six hundred eighty-two thousand, five hundred sixty-one".