6525540 has 72 divisors (see below), whose sum is σ = 22626240. Its totient is φ = 1491264.

The previous prime is 6525529. The next prime is 6525553. The reversal of 6525540 is 455256.

6525540 is a `hidden beast` number, since 652 + 5 + 5 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1330 + ... + 3849.

Almost surely, 2^6525540 is an apocalyptic number.

6525540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6525540 is an abundant number, since it is smaller than the sum of its proper divisors (16100700).

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

6525540 is a wasteful number, since it uses less digits than its factorization.

6525540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201 (or 5196 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 6525540 is about 2554.5136523417. The cubic root of 6525540 is about 186.8696700232.

The spelling of 6525540 in words is "six million, five hundred twenty-five thousand, five hundred forty".