496721513 has 4 divisors (see below), whose sum is σ = 499243140. Its totient is φ = 494199888.

The previous prime is 496721497. The next prime is 496721527. The reversal of 496721513 is 315127694.

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

It can be written as a sum of positive squares in 2 ways, for example, as 477335104 + 19386409 = 21848^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 496721513 - 2⁴ = 496721497 is a prime.

It is a super-2 number, since 2×496721513² = 493464522954018338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (496721543) 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, 1260518 + ... + 1260911.

It is an arithmetic number, because the mean of its divisors is an integer number (124810785).

Almost surely, 2^496721513 is an apocalyptic number.

It is an amenable number.

496721513 is a deficient number, since it is larger than the sum of its proper divisors (2521627).

496721513 is a wasteful number, since it uses less digits than its factorization.

496721513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521626.

The product of its digits is 45360, while the sum is 38.

The square root of 496721513 is about 22287.2500098150. The cubic root of 496721513 is about 791.9619626199.

The spelling of 496721513 in words is "four hundred ninety-six million, seven hundred twenty-one thousand, five hundred thirteen".