494554559 has 2 divisors, whose sum is σ = 494554560. Its totient is φ = 494554558.

The previous prime is 494554549. The next prime is 494554573. The reversal of 494554559 is 955455494.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494554559 - 2²⁰ = 493505983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494554549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247277279 + 247277280.

It is an arithmetic number, because the mean of its divisors is an integer number (247277280).

Almost surely, 2^494554559 is an apocalyptic number.

494554559 is a deficient number, since it is larger than the sum of its proper divisors (1).

494554559 is an equidigital number, since it uses as much as digits as its factorization.

494554559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240000, while the sum is 50.

The square root of 494554559 is about 22238.5826661683. The cubic root of 494554559 is about 790.8086357676.

The spelling of 494554559 in words is "four hundred ninety-four million, five hundred fifty-four thousand, five hundred fifty-nine".