8553638604 has 96 divisors (see below), whose sum is σ = 24713289216. Its totient is φ = 2246630400.

The previous prime is 8553638543. The next prime is 8553638609. The reversal of 8553638604 is 4068363558.

It is not an unprimeable number, because it can be changed into a prime (8553638609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8247 + ... + 131054.

It is an arithmetic number, because the mean of its divisors is an integer number (257430096).

Almost surely, 2^8553638604 is an apocalyptic number.

8553638604 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8553638604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12356644608).

8553638604 is an abundant number, since it is smaller than the sum of its proper divisors (16159650612).

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

8553638604 is a wasteful number, since it uses less digits than its factorization.

8553638604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139375 (or 139373 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The square root of 8553638604 is about 92485.8832687454. The cubic root of 8553638604 is about 2045.1113816782. Note that the first 3 decimals are identical.

The spelling of 8553638604 in words is "eight billion, five hundred fifty-three million, six hundred thirty-eight thousand, six hundred four".