56330750281 has 9 divisors (see below), whose sum is σ = 61000544181. Its totient is φ = 51994767552.

The previous prime is 56330750257. The next prime is 56330750317. The reversal of 56330750281 is 18205703365.

The square root of 56330750281 is 237341.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 17545386681 + 38785363600 = 132459^2 + 196940^2 .

It is not a de Polignac number, because 56330750281 - 2¹³ = 56330742089 is a prime.

It is a super-2 number, since 2×56330750281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56330780281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3076305 + ... + 3094561.

Almost surely, 2^56330750281 is an apocalyptic number.

56330750281 is the 237341-st square number.

56330750281 is the 118671-st centered octagonal number.

It is an amenable number.

56330750281 is a deficient number, since it is larger than the sum of its proper divisors (4669793900).

56330750281 is an frugal number, since it uses more digits than its factorization.

56330750281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36540 (or 18270 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 56330750281 in words is "fifty-six billion, three hundred thirty million, seven hundred fifty thousand, two hundred eighty-one".