6513540548 has 12 divisors (see below), whose sum is σ = 12069207612. Its totient is φ = 3065195520.

The previous prime is 6513540529. The next prime is 6513540557. The reversal of 6513540548 is 8450453156.

It can be written as a sum of positive squares in 2 ways, for example, as 2057711044 + 4455829504 = 45362^2 + 66752^2 .

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, 47893613 + ... + 47893748.

It is an arithmetic number, because the mean of its divisors is an integer number (1005767301).

Almost surely, 2^6513540548 is an apocalyptic number.

6513540548 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6513540548 is a deficient number, since it is larger than the sum of its proper divisors (5555667064).

6513540548 is a wasteful number, since it uses less digits than its factorization.

6513540548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95787382 (or 95787380 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The square root of 6513540548 is about 80706.5087090254. The cubic root of 6513540548 is about 1867.5505833457.

The spelling of 6513540548 in words is "six billion, five hundred thirteen million, five hundred forty thousand, five hundred forty-eight".