515329965 has 16 divisors (see below), whose sum is σ = 916142400. Its totient is φ = 274842576.

The previous prime is 515329853. The next prime is 515329979. The reversal of 515329965 is 569923515.

515329965 is a `hidden beast` number, since 51 + 532 + 9 + 9 + 65 = 666.

It is not a de Polignac number, because 515329965 - 2¹² = 515325869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 515329965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1908495 + ... + 1908764.

It is an arithmetic number, because the mean of its divisors is an integer number (57258900).

Almost surely, 2^515329965 is an apocalyptic number.

It is an amenable number.

515329965 is a deficient number, since it is larger than the sum of its proper divisors (400812435).

515329965 is a wasteful number, since it uses less digits than its factorization.

515329965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817273 (or 3817267 counting only the distinct ones).

The product of its digits is 364500, while the sum is 45.

The square root of 515329965 is about 22700.8802692759. The cubic root of 515329965 is about 801.7306103062.

The spelling of 515329965 in words is "five hundred fifteen million, three hundred twenty-nine thousand, nine hundred sixty-five".