6551226528 has 576 divisors, whose sum is σ = 23475142656. Its totient is φ = 1561190400.

The previous prime is 6551226509. The next prime is 6551226569. The reversal of 6551226528 is 8256221556.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 6551226528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57975400 + ... + 57975512.

It is an arithmetic number, because the mean of its divisors is an integer number (40755456).

Almost surely, 2^6551226528 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 6551226528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11737571328).

6551226528 is an abundant number, since it is smaller than the sum of its proper divisors (16923916128).

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

6551226528 is a wasteful number, since it uses less digits than its factorization.

6551226528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 190 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The square root of 6551226528 is about 80939.6474417822. The cubic root of 6551226528 is about 1871.1454113035.

The spelling of 6551226528 in words is "six billion, five hundred fifty-one million, two hundred twenty-six thousand, five hundred twenty-eight".