6525864 has 48 divisors (see below), whose sum is σ = 17795700. Its totient is φ = 2160384.

The previous prime is 6525853. The next prime is 6525877. The reversal of 6525864 is 4685256.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 562500 = 2442^2 + 750^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16582 + ... + 16970.

Almost surely, 2^6525864 is an apocalyptic number.

It is an amenable number.

6525864 is an abundant number, since it is smaller than the sum of its proper divisors (11269836).

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

6525864 is a wasteful number, since it uses less digits than its factorization.

6525864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 627 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 6525864 is about 2554.5770687141. The cubic root of 6525864 is about 186.8727627313.

The spelling of 6525864 in words is "six million, five hundred twenty-five thousand, eight hundred sixty-four".