5630021280 has 144 divisors (see below), whose sum is σ = 20690397000. Its totient is φ = 1385846784.

The previous prime is 5630021273. The next prime is 5630021281. The reversal of 5630021280 is 821200365.

5630021280 is a `hidden beast` number, since 5 + 630 + 0 + 2 + 1 + 28 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1797420816 + 3832600464 = 42396^2 + 61908^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×5630021280³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (5630021281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131655 + ... + 169094.

Almost surely, 2^5630021280 is an apocalyptic number.

It is an amenable number.

5630021280 is an abundant number, since it is smaller than the sum of its proper divisors (15060375720).

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

5630021280 is a wasteful number, since it uses less digits than its factorization.

5630021280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300783 (or 300772 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5630021280 is about 75033.4677327391. The cubic root of 5630021280 is about 1778.9756847021.

The spelling of 5630021280 in words is "five billion, six hundred thirty million, twenty-one thousand, two hundred eighty".