54920779 has 2 divisors, whose sum is σ = 54920780. Its totient is φ = 54920778.

The previous prime is 54920777. The next prime is 54920783. The reversal of 54920779 is 97702945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54920779 - 2¹ = 54920777 is a prime.

Together with 54920777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54920777) 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, 27460389 + 27460390.

It is an arithmetic number, because the mean of its divisors is an integer number (27460390).

Almost surely, 2^54920779 is an apocalyptic number.

54920779 is a deficient number, since it is larger than the sum of its proper divisors (1).

54920779 is an equidigital number, since it uses as much as digits as its factorization.

54920779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 54920779 is about 7410.8554836807. The cubic root of 54920779 is about 380.1125682201.

The spelling of 54920779 in words is "fifty-four million, nine hundred twenty thousand, seven hundred seventy-nine".