516554505 has 12 divisors (see below), whose sum is σ = 895361220. Its totient is φ = 275495712.

The previous prime is 516554477. The next prime is 516554509. The reversal of 516554505 is 505455615.

516554505 is a `hidden beast` number, since 51 + 6 + 554 + 50 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 114832656 + 401721849 = 10716^2 + 20043^2 .

It is not a de Polignac number, because 516554505 - 2⁵ = 516554473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516554505.

It is not an unprimeable number, because it can be changed into a prime (516554509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5739450 + ... + 5739539.

It is an arithmetic number, because the mean of its divisors is an integer number (74613435).

Almost surely, 2^516554505 is an apocalyptic number.

It is an amenable number.

516554505 is a deficient number, since it is larger than the sum of its proper divisors (378806715).

516554505 is a wasteful number, since it uses less digits than its factorization.

516554505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11479000 (or 11478997 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 516554505 is about 22727.8354666695. The cubic root of 516554505 is about 802.3651387782.

It can be divided in two parts, 51 and 6554505, that added together give a palindrome (6554556).

The spelling of 516554505 in words is "five hundred sixteen million, five hundred fifty-four thousand, five hundred five".