6557696 has 26 divisors (see below), whose sum is σ = 13121982. Its totient is φ = 3276800.

The previous prime is 6557693. The next prime is 6557723. The reversal of 6557696 is 6967556.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 4096 = 2560^2 + 64^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (6557693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3296 + ... + 4896.

Almost surely, 2^6557696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6557696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6560991).

6557696 is an abundant number, since it is smaller than the sum of its proper divisors (6564286).

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

6557696 is an equidigital number, since it uses as much as digits as its factorization.

6557696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1603 counting only the distinct ones).

The product of its digits is 340200, while the sum is 44.

The square root of 6557696 is about 2560.7998750390. The cubic root of 6557696 is about 187.1761140293.

The spelling of 6557696 in words is "six million, five hundred fifty-seven thousand, six hundred ninety-six".