35756561 has 2 divisors, whose sum is σ = 35756562. Its totient is φ = 35756560.

The previous prime is 35756557. The next prime is 35756569. The reversal of 35756561 is 16565753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24196561 + 11560000 = 4919^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 35756561 - 2² = 35756557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (35756569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17878280 + 17878281.

It is an arithmetic number, because the mean of its divisors is an integer number (17878281).

Almost surely, 2^35756561 is an apocalyptic number.

It is an amenable number.

35756561 is a deficient number, since it is larger than the sum of its proper divisors (1).

35756561 is an equidigital number, since it uses as much as digits as its factorization.

35756561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 38.

The square root of 35756561 is about 5979.6790047627. The cubic root of 35756561 is about 329.4467651092.

The spelling of 35756561 in words is "thirty-five million, seven hundred fifty-six thousand, five hundred sixty-one".