54517399579 has 2 divisors, whose sum is σ = 54517399580. Its totient is φ = 54517399578.

The previous prime is 54517399553. The next prime is 54517399613. The reversal of 54517399579 is 97599371545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54517399579 - 2¹³ = 54517391387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54517399579.

It is not a weakly prime, because it can be changed into another prime (54517399379) 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, 27258699789 + 27258699790.

It is an arithmetic number, because the mean of its divisors is an integer number (27258699790).

Almost surely, 2^54517399579 is an apocalyptic number.

54517399579 is a deficient number, since it is larger than the sum of its proper divisors (1).

54517399579 is an equidigital number, since it uses as much as digits as its factorization.

54517399579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53581500, while the sum is 64.

The spelling of 54517399579 in words is "fifty-four billion, five hundred seventeen million, three hundred ninety-nine thousand, five hundred seventy-nine".