555649456 has 80 divisors (see below), whose sum is σ = 1182781440. Its totient is φ = 252046080.

The previous prime is 555649453. The next prime is 555649481. The reversal of 555649456 is 654946555.

It is not an unprimeable number, because it can be changed into a prime (555649453) 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, 604165 + ... + 605083.

It is an arithmetic number, because the mean of its divisors is an integer number (14784768).

Almost surely, 2^555649456 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 555649456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591390720).

555649456 is an abundant number, since it is smaller than the sum of its proper divisors (627131984).

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

555649456 is a wasteful number, since it uses less digits than its factorization.

555649456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1028 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 49.

The square root of 555649456 is about 23572.2178846200. The cubic root of 555649456 is about 822.1170045163.

The spelling of 555649456 in words is "five hundred fifty-five million, six hundred forty-nine thousand, four hundred fifty-six".