516165497 has 4 divisors (see below), whose sum is σ = 516231780. Its totient is φ = 516099216.

The previous prime is 516165493. The next prime is 516165499. The reversal of 516165497 is 794561615.

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 390299536 + 125865961 = 19756^2 + 11219^2 .

It is a cyclic number.

It is not a de Polignac number, because 516165497 - 2² = 516165493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516165493) 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, 19622 + ... + 37647.

It is an arithmetic number, because the mean of its divisors is an integer number (129057945).

Almost surely, 2^516165497 is an apocalyptic number.

It is an amenable number.

516165497 is a deficient number, since it is larger than the sum of its proper divisors (66283).

516165497 is an equidigital number, since it uses as much as digits as its factorization.

516165497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66282.

The product of its digits is 226800, while the sum is 44.

The square root of 516165497 is about 22719.2758907497. The cubic root of 516165497 is about 802.1636725632.

The spelling of 516165497 in words is "five hundred sixteen million, one hundred sixty-five thousand, four hundred ninety-seven".