73082561 has 2 divisors, whose sum is σ = 73082562. Its totient is φ = 73082560.

The previous prime is 73082543. The next prime is 73082567. The reversal of 73082561 is 16528037.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73017025 + 65536 = 8545^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 73082561 - 2⁶ = 73082497 is a prime.

It is not a weakly prime, because it can be changed into another prime (73082567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36541280 + 36541281.

It is an arithmetic number, because the mean of its divisors is an integer number (36541281).

Almost surely, 2^73082561 is an apocalyptic number.

It is an amenable number.

73082561 is a deficient number, since it is larger than the sum of its proper divisors (1).

73082561 is an equidigital number, since it uses as much as digits as its factorization.

73082561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 73082561 is about 8548.8338970880. The cubic root of 73082561 is about 418.0914175487.

The spelling of 73082561 in words is "seventy-three million, eighty-two thousand, five hundred sixty-one".