6553553556 has 48 divisors (see below), whose sum is σ = 16708930560. Its totient is φ = 1982692320.

The previous prime is 6553553551. The next prime is 6553553557.

6553553556 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6553553556² = 85898128422720490272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6553553551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41605 + ... + 121811.

It is an arithmetic number, because the mean of its divisors is an integer number (348102720).

Almost surely, 2^6553553556 is an apocalyptic number.

6553553556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6553553556 is an abundant number, since it is smaller than the sum of its proper divisors (10155377004).

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

6553553556 is a wasteful number, since it uses less digits than its factorization.

6553553556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80844 (or 80842 counting only the distinct ones).

The product of its digits is 5062500, while the sum is 48.

The square root of 6553553556 is about 80954.0212466311. The cubic root of 6553553556 is about 1871.3669317726.

The spelling of 6553553556 in words is "six billion, five hundred fifty-three million, five hundred fifty-three thousand, five hundred fifty-six".