6503485515 has 32 divisors (see below), whose sum is σ = 10475412480. Its totient is φ = 3445322496.

The previous prime is 6503485493. The next prime is 6503485601. The reversal of 6503485515 is 5155843056.

It is a happy number.

It is not a de Polignac number, because 6503485515 - 2⁸ = 6503485259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1616176 + ... + 1620194.

It is an arithmetic number, because the mean of its divisors is an integer number (327356640).

Almost surely, 2^6503485515 is an apocalyptic number.

6503485515 is a deficient number, since it is larger than the sum of its proper divisors (3971926965).

6503485515 is a wasteful number, since it uses less digits than its factorization.

6503485515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723.

The product of its (nonzero) digits is 360000, while the sum is 42.

The square root of 6503485515 is about 80644.1908323222. The cubic root of 6503485515 is about 1866.5891014574.

The spelling of 6503485515 in words is "six billion, five hundred three million, four hundred eighty-five thousand, five hundred fifteen".