54861089 has 2 divisors, whose sum is σ = 54861090. Its totient is φ = 54861088.

The previous prime is 54861067. The next prime is 54861101. The reversal of 54861089 is 98016845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 2226064 = 7255^2 + 1492^2 .

It is a cyclic number.

It is not a de Polignac number, because 54861089 - 2⁸ = 54860833 is a prime.

It is not a weakly prime, because it can be changed into another prime (54861689) 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 as a sum of consecutive naturals, namely, 27430544 + 27430545.

It is an arithmetic number, because the mean of its divisors is an integer number (27430545).

Almost surely, 2^54861089 is an apocalyptic number.

It is an amenable number.

54861089 is a deficient number, since it is larger than the sum of its proper divisors (1).

54861089 is an equidigital number, since it uses as much as digits as its factorization.

54861089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 54861089 is about 7406.8271884796. The cubic root of 54861089 is about 379.9748113498.

The spelling of 54861089 in words is "fifty-four million, eight hundred sixty-one thousand, eighty-nine".