6501625239 has 4 divisors (see below), whose sum is σ = 8668833656. Its totient is φ = 4334416824.

The previous prime is 6501625223. The next prime is 6501625253. The reversal of 6501625239 is 9325261056.

6501625239 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6501625239 - 2⁴ = 6501625223 is a prime.

It is a super-2 number, since 2×6501625239² = 84542261496803614242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6501625197 and 6501625206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501625259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083604204 + ... + 1083604209.

It is an arithmetic number, because the mean of its divisors is an integer number (2167208414).

Almost surely, 2^6501625239 is an apocalyptic number.

6501625239 is a deficient number, since it is larger than the sum of its proper divisors (2167208417).

6501625239 is a wasteful number, since it uses less digits than its factorization.

6501625239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167208416.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 6501625239 is about 80632.6561574155. The cubic root of 6501625239 is about 1866.4111096183.

The spelling of 6501625239 in words is "six billion, five hundred one million, six hundred twenty-five thousand, two hundred thirty-nine".