6550553436 has 288 divisors, whose sum is σ = 19112163840. Its totient is φ = 1738598400.

The previous prime is 6550553423. The next prime is 6550553461. The reversal of 6550553436 is 6343550556.

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

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, 73601680 + ... + 73601768.

It is an arithmetic number, because the mean of its divisors is an integer number (66361680).

Almost surely, 2^6550553436 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 6550553436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9556081920).

6550553436 is an abundant number, since it is smaller than the sum of its proper divisors (12561610404).

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

6550553436 is a wasteful number, since it uses less digits than its factorization.

6550553436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 42.

The square root of 6550553436 is about 80935.4893479986. The cubic root of 6550553436 is about 1871.0813268079.

The spelling of 6550553436 in words is "six billion, five hundred fifty million, five hundred fifty-three thousand, four hundred thirty-six".