54689513 has 2 divisors, whose sum is σ = 54689514. Its totient is φ = 54689512.

The previous prime is 54689497. The next prime is 54689539. The reversal of 54689513 is 31598645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40043584 + 14645929 = 6328^2 + 3827^2 .

It is a cyclic number.

It is not a de Polignac number, because 54689513 - 2⁴ = 54689497 is a prime.

It is not a weakly prime, because it can be changed into another prime (54689113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27344756 + 27344757.

It is an arithmetic number, because the mean of its divisors is an integer number (27344757).

Almost surely, 2^54689513 is an apocalyptic number.

It is an amenable number.

54689513 is a deficient number, since it is larger than the sum of its proper divisors (1).

54689513 is an equidigital number, since it uses as much as digits as its factorization.

54689513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 54689513 is about 7395.2358312633. The cubic root of 54689513 is about 379.5782786872.

The spelling of 54689513 in words is "fifty-four million, six hundred eighty-nine thousand, five hundred thirteen".