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56035081 is a prime number
BaseRepresentation
bin1101010111000…
…0011100001001
310220102212200101
43111300130021
5103321110311
65321005401
71250201404
oct325603411
9126385611
1056035081
11296a2a93
1216923861
13b7bc36b
147628d3b
154dbcec1
hex3570709

56035081 has 2 divisors, whose sum is σ = 56035082. Its totient is φ = 56035080.

The previous prime is 56035079. The next prime is 56035093. The reversal of 56035081 is 18053065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55950400 + 84681 = 7480^2 + 291^2 .

It is a cyclic number.

It is not a de Polignac number, because 56035081 - 21 = 56035079 is a prime.

It is a super-2 number, since 2×560350812 = 6279860605353122, which contains 22 as substring.

Together with 56035079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56035051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28017540 + 28017541.

It is an arithmetic number, because the mean of its divisors is an integer number (28017541).

Almost surely, 256035081 is an apocalyptic number.

It is an amenable number.

56035081 is a deficient number, since it is larger than the sum of its proper divisors (1).

56035081 is an equidigital number, since it uses as much as digits as its factorization.

56035081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 56035081 is about 7485.6583544803. The cubic root of 56035081 is about 382.6661098052. Note that the first 3 decimals are identical.

The spelling of 56035081 in words is "fifty-six million, thirty-five thousand, eighty-one".