54827779 has 2 divisors, whose sum is σ = 54827780. Its totient is φ = 54827778.

The previous prime is 54827743. The next prime is 54827797. The reversal of 54827779 is 97772845.

Together with next prime (54827797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54827779 - 2⁷ = 54827651 is a prime.

It is not a weakly prime, because it can be changed into another prime (54828779) 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, 27413889 + 27413890.

It is an arithmetic number, because the mean of its divisors is an integer number (27413890).

Almost surely, 2^54827779 is an apocalyptic number.

54827779 is a deficient number, since it is larger than the sum of its proper divisors (1).

54827779 is an equidigital number, since it uses as much as digits as its factorization.

54827779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 49.

The square root of 54827779 is about 7404.5782459233. The cubic root of 54827779 is about 379.8978926951.

The spelling of 54827779 in words is "fifty-four million, eight hundred twenty-seven thousand, seven hundred seventy-nine".