493043501 has 4 divisors (see below), whose sum is σ = 493215900. Its totient is φ = 492871104.

The previous prime is 493043477. The next prime is 493043513. The reversal of 493043501 is 105340394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105340394 = 2 ⋅52670197.

It can be written as a sum of positive squares in 2 ways, for example, as 444113476 + 48930025 = 21074^2 + 6995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493043501 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 (493003501) 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, 81836 + ... + 87653.

It is an arithmetic number, because the mean of its divisors is an integer number (123303975).

Almost surely, 2^493043501 is an apocalyptic number.

It is an amenable number.

493043501 is a deficient number, since it is larger than the sum of its proper divisors (172399).

493043501 is a wasteful number, since it uses less digits than its factorization.

493043501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172398.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 493043501 is about 22204.5828828195. The cubic root of 493043501 is about 790.0024039878.

Adding to 493043501 its reverse (105340394), we get a palindrome (598383895).

The spelling of 493043501 in words is "four hundred ninety-three million, forty-three thousand, five hundred one".