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2756532481 is a prime number
BaseRepresentation
bin1010010001001101…
…0101100100000001
321010002220100200121
42210103111210001
521121133014411
61133310020241
7125211065563
oct24423254401
97102810617
102756532481
111194a9971a
1264b1a7681
1334c11b311
141c214b333
15112000571
hexa44d5901

2756532481 has 2 divisors, whose sum is σ = 2756532482. Its totient is φ = 2756532480.

The previous prime is 2756532463. The next prime is 2756532511. The reversal of 2756532481 is 1842356572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1425742081 + 1330790400 = 37759^2 + 36480^2 .

It is a cyclic number.

It is not a de Polignac number, because 2756532481 - 27 = 2756532353 is a prime.

It is a super-2 number, since 2×27565324812 = 15196942637616030722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2756532421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378266240 + 1378266241.

It is an arithmetic number, because the mean of its divisors is an integer number (1378266241).

Almost surely, 22756532481 is an apocalyptic number.

It is an amenable number.

2756532481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2756532481 is an equidigital number, since it uses as much as digits as its factorization.

2756532481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 43.

The square root of 2756532481 is about 52502.6902263113. The cubic root of 2756532481 is about 1402.1281377019.

The spelling of 2756532481 in words is "two billion, seven hundred fifty-six million, five hundred thirty-two thousand, four hundred eighty-one".