40683553 has 2 divisors, whose sum is σ = 40683554. Its totient is φ = 40683552.

The previous prime is 40683473. The next prime is 40683581. The reversal of 40683553 is 35538604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40666129 + 17424 = 6377^2 + 132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40683553 is a prime.

It is not a weakly prime, because it can be changed into another prime (40683583) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20341776 + 20341777.

It is an arithmetic number, because the mean of its divisors is an integer number (20341777).

Almost surely, 2^40683553 is an apocalyptic number.

It is an amenable number.

40683553 is a deficient number, since it is larger than the sum of its proper divisors (1).

40683553 is an equidigital number, since it uses as much as digits as its factorization.

40683553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 40683553 is about 6378.3660133297. The cubic root of 40683553 is about 343.9322952432.

The spelling of 40683553 in words is "forty million, six hundred eighty-three thousand, five hundred fifty-three".