40555733 has 2 divisors, whose sum is σ = 40555734. Its totient is φ = 40555732.

The previous prime is 40555687. The next prime is 40555741. The reversal of 40555733 is 33755504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35724529 + 4831204 = 5977^2 + 2198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40555733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40555733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40555763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20277866 + 20277867.

It is an arithmetic number, because the mean of its divisors is an integer number (20277867).

Almost surely, 2^40555733 is an apocalyptic number.

It is an amenable number.

40555733 is a deficient number, since it is larger than the sum of its proper divisors (1).

40555733 is an equidigital number, since it uses as much as digits as its factorization.

40555733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 40555733 is about 6368.3383232991. The cubic root of 40555733 is about 343.5717273745.

The spelling of 40555733 in words is "forty million, five hundred fifty-five thousand, seven hundred thirty-three".