494756519 has 4 divisors (see below), whose sum is σ = 516267696. Its totient is φ = 473245344.

The previous prime is 494756513. The next prime is 494756557. The reversal of 494756519 is 915657494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 494756519 - 2⁴ = 494756503 is a prime.

It is a super-2 number, since 2×494756519² = 489568026185994722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494756513) 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, 10755554 + ... + 10755599.

It is an arithmetic number, because the mean of its divisors is an integer number (129066924).

Almost surely, 2^494756519 is an apocalyptic number.

494756519 is a deficient number, since it is larger than the sum of its proper divisors (21511177).

494756519 is a wasteful number, since it uses less digits than its factorization.

494756519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21511176.

The product of its digits is 1360800, while the sum is 50.

The square root of 494756519 is about 22243.1229596925. The cubic root of 494756519 is about 790.9162679616.

The spelling of 494756519 in words is "four hundred ninety-four million, seven hundred fifty-six thousand, five hundred nineteen".