54258779 has 2 divisors, whose sum is σ = 54258780. Its totient is φ = 54258778.

The previous prime is 54258769. The next prime is 54258847. The reversal of 54258779 is 97785245.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54258779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54258719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27129389 + 27129390.

It is an arithmetic number, because the mean of its divisors is an integer number (27129390).

Almost surely, 2^54258779 is an apocalyptic number.

54258779 is a deficient number, since it is larger than the sum of its proper divisors (1).

54258779 is an equidigital number, since it uses as much as digits as its factorization.

54258779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 54258779 is about 7366.0558645723. The cubic root of 54258779 is about 378.5791328816.

The spelling of 54258779 in words is "fifty-four million, two hundred fifty-eight thousand, seven hundred seventy-nine".