6505770825 has 192 divisors, whose sum is σ = 13027737600. Its totient is φ = 3175200000.

The previous prime is 6505770811. The next prime is 6505770847. The reversal of 6505770825 is 5280775056.

6505770825 is a `hidden beast` number, since 6 + 50 + 577 + 0 + 8 + 25 = 666.

It is not a de Polignac number, because 6505770825 - 2¹⁰ = 6505769801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 43084500 + ... + 43084650.

It is an arithmetic number, because the mean of its divisors is an integer number (67852800).

Almost surely, 2^6505770825 is an apocalyptic number.

It is an amenable number.

6505770825 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

6505770825 is a wasteful number, since it uses less digits than its factorization.

6505770825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The square root of 6505770825 is about 80658.3586803005. The cubic root of 6505770825 is about 1866.8077142393.

The spelling of 6505770825 in words is "six billion, five hundred five million, seven hundred seventy thousand, eight hundred twenty-five".