494566013 has 4 divisors (see below), whose sum is σ = 507932700. Its totient is φ = 481199328.

The previous prime is 494566001. The next prime is 494566069. The reversal of 494566013 is 310665494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310665494 = 2 ⋅155332747.

It can be written as a sum of positive squares in 2 ways, for example, as 192571129 + 301994884 = 13877^2 + 17378^2 .

It is a cyclic number.

It is not a de Polignac number, because 494566013 - 2²⁴ = 477788797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494566073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683288 + ... + 6683361.

It is an arithmetic number, because the mean of its divisors is an integer number (126983175).

Almost surely, 2^494566013 is an apocalyptic number.

It is an amenable number.

494566013 is a deficient number, since it is larger than the sum of its proper divisors (13366687).

494566013 is a wasteful number, since it uses less digits than its factorization.

494566013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13366686.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 494566013 is about 22238.8401900819. The cubic root of 494566013 is about 790.8147408252.

The spelling of 494566013 in words is "four hundred ninety-four million, five hundred sixty-six thousand, thirteen".