54561311 has 16 divisors (see below), whose sum is σ = 63435840. Its totient is φ = 45964800.

The previous prime is 54561307. The next prime is 54561323. The reversal of 54561311 is 11316545.

It is not a de Polignac number, because 54561311 - 2² = 54561307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54561301) 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 15 ways as a sum of consecutive naturals, for example, 161735 + ... + 162071.

It is an arithmetic number, because the mean of its divisors is an integer number (3964740).

Almost surely, 2^54561311 is an apocalyptic number.

54561311 is a deficient number, since it is larger than the sum of its proper divisors (8874529).

54561311 is a wasteful number, since it uses less digits than its factorization.

54561311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its digits is 1800, while the sum is 26.

The square root of 54561311 is about 7386.5628678026. The cubic root of 54561311 is about 379.2814468323.

Adding to 54561311 its reverse (11316545), we get a palindrome (65877856).

It can be divided in two parts, 54561 and 311, that added together give a cube (54872 = 38³).

The spelling of 54561311 in words is "fifty-four million, five hundred sixty-one thousand, three hundred eleven".