6501825 has 72 divisors (see below), whose sum is σ = 13231296. Its totient is φ = 3024000.

The previous prime is 6501823. The next prime is 6501827. The reversal of 6501825 is 5281056.

6501825 is a `hidden beast` number, since 650 + 1 + 8 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (6501823) and next prime (6501827).

It is not a de Polignac number, because 6501825 - 2¹ = 6501823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 91540 + ... + 91610.

It is an arithmetic number, because the mean of its divisors is an integer number (183768).

Almost surely, 2^6501825 is an apocalyptic number.

It is an amenable number.

6501825 is an abundant number, since it is smaller than the sum of its proper divisors (6729471).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6501825 is a wasteful number, since it uses less digits than its factorization.

6501825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 6501825 is about 2549.8676436239. The cubic root of 6501825 is about 186.6430224446.

The spelling of 6501825 in words is "six million, five hundred one thousand, eight hundred twenty-five".