555497880 has 128 divisors (see below), whose sum is σ = 1930867200. Its totient is φ = 125217792.

The previous prime is 555497843. The next prime is 555497881. The reversal of 555497880 is 88794555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555497881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56791 + ... + 65849.

It is an arithmetic number, because the mean of its divisors is an integer number (15084900).

Almost surely, 2^555497880 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 555497880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965433600).

555497880 is an abundant number, since it is smaller than the sum of its proper divisors (1375369320).

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

555497880 is a wasteful number, since it uses less digits than its factorization.

555497880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9153 (or 9149 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 51.

The square root of 555497880 is about 23569.0025245024. The cubic root of 555497880 is about 822.0422424287.

The spelling of 555497880 in words is "five hundred fifty-five million, four hundred ninety-seven thousand, eight hundred eighty".