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56281322371 is a prime number
BaseRepresentation
bin110100011010101000…
…001101001110000011
312101021100020102001011
4310122220031032003
51410231004303441
641504424021351
74031463226651
oct643250151603
9171240212034
1056281322371
112196138056a
12aaa8601857
1353cc1c7021
142a1ca4ddd1
1516e604c581
hexd1aa0d383

56281322371 has 2 divisors, whose sum is σ = 56281322372. Its totient is φ = 56281322370.

The previous prime is 56281322309. The next prime is 56281322389. The reversal of 56281322371 is 17322318265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56281322371 - 223 = 56272933763 is a prime.

It is not a weakly prime, because it can be changed into another prime (56281382371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28140661185 + 28140661186.

It is an arithmetic number, because the mean of its divisors is an integer number (28140661186).

Almost surely, 256281322371 is an apocalyptic number.

56281322371 is a deficient number, since it is larger than the sum of its proper divisors (1).

56281322371 is an equidigital number, since it uses as much as digits as its factorization.

56281322371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The spelling of 56281322371 in words is "fifty-six billion, two hundred eighty-one million, three hundred twenty-two thousand, three hundred seventy-one".