515061065 has 16 divisors (see below), whose sum is σ = 640797696. Its totient is φ = 397142400.

The previous prime is 515061061. The next prime is 515061137. The reversal of 515061065 is 560160515.

It is not a de Polignac number, because 515061065 - 2² = 515061061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (515061061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1880 + ... + 32150.

It is an arithmetic number, because the mean of its divisors is an integer number (40049856).

Almost surely, 2^515061065 is an apocalyptic number.

It is an amenable number.

515061065 is a deficient number, since it is larger than the sum of its proper divisors (125736631).

515061065 is a wasteful number, since it uses less digits than its factorization.

515061065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30400.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 515061065 is about 22694.9568186414. The cubic root of 515061065 is about 801.5911379395.

The spelling of 515061065 in words is "five hundred fifteen million, sixty-one thousand, sixty-five".