556973280 has 192 divisors, whose sum is σ = 2012774400. Its totient is φ = 143700480.

The previous prime is 556973273. The next prime is 556973293. The reversal of 556973280 is 82379655.

It is a happy number.

556973280 is a `hidden beast` number, since 5 + 569 + 7 + 3 + 2 + 80 = 666.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131841 + ... + 135999.

It is an arithmetic number, because the mean of its divisors is an integer number (10483200).

Almost surely, 2^556973280 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 556973280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006387200).

556973280 is an abundant number, since it is smaller than the sum of its proper divisors (1455801120).

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

556973280 is a wasteful number, since it uses less digits than its factorization.

556973280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214 (or 4200 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 556973280 is about 23600.2813542551. The cubic root of 556973280 is about 822.7693792806.

The spelling of 556973280 in words is "five hundred fifty-six million, nine hundred seventy-three thousand, two hundred eighty".