6520052015 has 8 divisors (see below), whose sum is σ = 7824645888. Its totient is φ = 5215652640.

The previous prime is 6520052009. The next prime is 6520052023. The reversal of 6520052015 is 5102500256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6520052015 - 2¹⁴ = 6520035631 is a prime.

It is a super-2 number, since 2×6520052015² = 85022156556611120450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39725 + ... + 120905.

It is an arithmetic number, because the mean of its divisors is an integer number (978080736).

Almost surely, 2^6520052015 is an apocalyptic number.

6520052015 is a deficient number, since it is larger than the sum of its proper divisors (1304593873).

6520052015 is a wasteful number, since it uses less digits than its factorization.

6520052015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97249.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 6520052015 is about 80746.8390402993. The cubic root of 6520052015 is about 1868.1726947737.

The spelling of 6520052015 in words is "six billion, five hundred twenty million, fifty-two thousand, fifteen".