54304561 has 4 divisors (see below), whose sum is σ = 54478372. Its totient is φ = 54130752.

The previous prime is 54304553. The next prime is 54304661. The reversal of 54304561 is 16540345.

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 26584336 + 27720225 = 5156^2 + 5265^2 .

It is a cyclic number.

It is not a de Polignac number, because 54304561 - 2³ = 54304553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54304531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86436 + ... + 87061.

It is an arithmetic number, because the mean of its divisors is an integer number (13619593).

Almost surely, 2^54304561 is an apocalyptic number.

It is an amenable number.

54304561 is a deficient number, since it is larger than the sum of its proper divisors (173811).

54304561 is a wasteful number, since it uses less digits than its factorization.

54304561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173810.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 54304561 is about 7369.1628425487. The cubic root of 54304561 is about 378.6855810158.

The spelling of 54304561 in words is "fifty-four million, three hundred four thousand, five hundred sixty-one".