515314505 has 4 divisors (see below), whose sum is σ = 618377412. Its totient is φ = 412251600.

The previous prime is 515314493. The next prime is 515314507. The reversal of 515314505 is 505413515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505413515 = 5 ⋅101082703.

It can be written as a sum of positive squares in 2 ways, for example, as 403969801 + 111344704 = 20099^2 + 10552^2 .

It is a de Polignac number, because none of the positive numbers 2^k-515314505 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515314507) 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, 51531446 + ... + 51531455.

It is an arithmetic number, because the mean of its divisors is an integer number (154594353).

Almost surely, 2^515314505 is an apocalyptic number.

It is an amenable number.

515314505 is a deficient number, since it is larger than the sum of its proper divisors (103062907).

515314505 is a wasteful number, since it uses less digits than its factorization.

515314505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103062906.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 515314505 is about 22700.5397512923. The cubic root of 515314505 is about 801.7225928675.

The spelling of 515314505 in words is "five hundred fifteen million, three hundred fourteen thousand, five hundred five".