555385776 has 80 divisors (see below), whose sum is σ = 1568316288. Its totient is φ = 167961600.

The previous prime is 555385771. The next prime is 555385777. The reversal of 555385776 is 677583555.

It is not an unprimeable number, because it can be changed into a prime (555385771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427560 + ... + 428856.

Almost surely, 2^555385776 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 555385776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784158144).

555385776 is an abundant number, since it is smaller than the sum of its proper divisors (1012930512).

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

555385776 is a wasteful number, since it uses less digits than its factorization.

555385776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130 (or 2124 counting only the distinct ones).

The product of its digits is 4410000, while the sum is 51.

The square root of 555385776 is about 23566.6241960956. The cubic root of 555385776 is about 821.9869404334.

The spelling of 555385776 in words is "five hundred fifty-five million, three hundred eighty-five thousand, seven hundred seventy-six".