6553988 has 24 divisors (see below), whose sum is σ = 13679232. Its totient is φ = 2686464.

The previous prime is 6553979. The next prime is 6554021. The reversal of 6553988 is 8893556.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4445 + ... + 5732.

It is an arithmetic number, because the mean of its divisors is an integer number (569968).

Almost surely, 2^6553988 is an apocalyptic number.

It is an amenable number.

6553988 is an abundant number, since it is smaller than the sum of its proper divisors (7125244).

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

6553988 is a wasteful number, since it uses less digits than its factorization.

6553988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211 (or 10209 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 6553988 is about 2560.0757801284. The cubic root of 6553988 is about 187.1408282681.

The spelling of 6553988 in words is "six million, five hundred fifty-three thousand, nine hundred eighty-eight".