6555256400 has 240 divisors, whose sum is σ = 19725070848. Its totient is φ = 2033856000.

The previous prime is 6555256363. The next prime is 6555256469. The reversal of 6555256400 is 46525556.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10194479 + ... + 10195121.

Almost surely, 2^6555256400 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 6555256400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9862535424).

6555256400 is an abundant number, since it is smaller than the sum of its proper divisors (13169814448).

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

6555256400 is a wasteful number, since it uses less digits than its factorization.

6555256400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 6555256400 is about 80964.5379163001. The cubic root of 6555256400 is about 1871.5290000797.

The spelling of 6555256400 in words is "six billion, five hundred fifty-five million, two hundred fifty-six thousand, four hundred".