54854861 has 2 divisors, whose sum is σ = 54854862. Its totient is φ = 54854860.

The previous prime is 54854819. The next prime is 54854887. The reversal of 54854861 is 16845845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49970761 + 4884100 = 7069^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 54854861 - 2¹⁰ = 54853837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54854161) 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, 27427430 + 27427431.

It is an arithmetic number, because the mean of its divisors is an integer number (27427431).

Almost surely, 2^54854861 is an apocalyptic number.

It is an amenable number.

54854861 is a deficient number, since it is larger than the sum of its proper divisors (1).

54854861 is an equidigital number, since it uses as much as digits as its factorization.

54854861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153600, while the sum is 41.

The square root of 54854861 is about 7406.4067536154. The cubic root of 54854861 is about 379.9604321682.

The spelling of 54854861 in words is "fifty-four million, eight hundred fifty-four thousand, eight hundred sixty-one".