516403497 has 4 divisors (see below), whose sum is σ = 688538000. Its totient is φ = 344268996.

The previous prime is 516403483. The next prime is 516403499. The reversal of 516403497 is 794304615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 516403497 - 2¹¹ = 516401449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516403499) 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, 86067247 + ... + 86067252.

It is an arithmetic number, because the mean of its divisors is an integer number (172134500).

Almost surely, 2^516403497 is an apocalyptic number.

It is an amenable number.

516403497 is a deficient number, since it is larger than the sum of its proper divisors (172134503).

516403497 is a wasteful number, since it uses less digits than its factorization.

516403497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172134502.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 516403497 is about 22724.5131300981. The cubic root of 516403497 is about 802.2869441492.

The spelling of 516403497 in words is "five hundred sixteen million, four hundred three thousand, four hundred ninety-seven".