516823505 has 8 divisors (see below), whose sum is σ = 676569024. Its totient is φ = 375871600.

The previous prime is 516823499. The next prime is 516823519. The reversal of 516823505 is 505328615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 516823505 - 2⁶ = 516823441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4698341 + ... + 4698450.

It is an arithmetic number, because the mean of its divisors is an integer number (84571128).

Almost surely, 2^516823505 is an apocalyptic number.

516823505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

516823505 is a deficient number, since it is larger than the sum of its proper divisors (159745519).

516823505 is a wasteful number, since it uses less digits than its factorization.

516823505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9396807.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 516823505 is about 22733.7525498981. The cubic root of 516823505 is about 802.5043940197.

The spelling of 516823505 in words is "five hundred sixteen million, eight hundred twenty-three thousand, five hundred five".