54766813 has 2 divisors, whose sum is σ = 54766814. Its totient is φ = 54766812.

The previous prime is 54766807. The next prime is 54766849. The reversal of 54766813 is 31866745.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44863204 + 9903609 = 6698^2 + 3147^2 .

It is a cyclic number.

It is not a de Polignac number, because 54766813 - 2⁹ = 54766301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54766213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27383406 + 27383407.

It is an arithmetic number, because the mean of its divisors is an integer number (27383407).

Almost surely, 2^54766813 is an apocalyptic number.

It is an amenable number.

54766813 is a deficient number, since it is larger than the sum of its proper divisors (1).

54766813 is an equidigital number, since it uses as much as digits as its factorization.

54766813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 54766813 is about 7400.4603235204. The cubic root of 54766813 is about 379.7570307376.

The spelling of 54766813 in words is "fifty-four million, seven hundred sixty-six thousand, eight hundred thirteen".