6561548 has 12 divisors (see below), whose sum is σ = 13123152. Its totient is φ = 2812080.

The previous prime is 6561547. The next prime is 6561551. The reversal of 6561548 is 8451656.

It is a happy number.

6561548 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6561547) 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, 117143 + ... + 117198.

It is an arithmetic number, because the mean of its divisors is an integer number (1093596).

Almost surely, 2^6561548 is an apocalyptic number.

It is an amenable number.

6561548 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6561548 is a wasteful number, since it uses less digits than its factorization.

6561548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234352 (or 234350 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 6561548 is about 2561.5518733768. The cubic root of 6561548 is about 187.2127560280.

The spelling of 6561548 in words is "six million, five hundred sixty-one thousand, five hundred forty-eight".