555876720 has 240 divisors, whose sum is σ = 2174807232. Its totient is φ = 124600320.

The previous prime is 555876703. The next prime is 555876731. The reversal of 555876720 is 27678555.

555876720 is a `hidden beast` number, since 5 + 5 + 587 + 67 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 266080 + ... + 268160.

Almost surely, 2^555876720 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 555876720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087403616).

555876720 is an abundant number, since it is smaller than the sum of its proper divisors (1618930512).

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

555876720 is a wasteful number, since it uses less digits than its factorization.

555876720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The square root of 555876720 is about 23577.0379819009. The cubic root of 555876720 is about 822.2290728537.

The spelling of 555876720 in words is "five hundred fifty-five million, eight hundred seventy-six thousand, seven hundred twenty".