515065055 has 4 divisors (see below), whose sum is σ = 618078072. Its totient is φ = 412052040.

The previous prime is 515065037. The next prime is 515065079. The reversal of 515065055 is 550560515.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-515065055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51506501 + ... + 51506510.

It is an arithmetic number, because the mean of its divisors is an integer number (154519518).

Almost surely, 2^515065055 is an apocalyptic number.

515065055 is a deficient number, since it is larger than the sum of its proper divisors (103013017).

515065055 is a wasteful number, since it uses less digits than its factorization.

515065055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103013016.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 515065055 is about 22695.0447234633. The cubic root of 515065055 is about 801.5932078173.

The spelling of 515065055 in words is "five hundred fifteen million, sixty-five thousand, fifty-five".