6501531245 has 16 divisors (see below), whose sum is σ = 8959049280. Its totient is φ = 4479523200.

The previous prime is 6501531229. The next prime is 6501531247. The reversal of 6501531245 is 5421351056.

It is not a de Polignac number, because 6501531245 - 2⁴ = 6501531229 is a prime.

It is a super-2 number, since 2×6501531245² = 84539817059422500050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501531247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3109736 + ... + 3111825.

It is an arithmetic number, because the mean of its divisors is an integer number (559940580).

Almost surely, 2^6501531245 is an apocalyptic number.

It is an amenable number.

6501531245 is a deficient number, since it is larger than the sum of its proper divisors (2457518035).

6501531245 is a wasteful number, since it uses less digits than its factorization.

6501531245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6221596.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 6501531245 is about 80632.0733021296. The cubic root of 6501531245 is about 1866.4021153394.

The spelling of 6501531245 in words is "six billion, five hundred one million, five hundred thirty-one thousand, two hundred forty-five".