40555577 has 2 divisors, whose sum is σ = 40555578. Its totient is φ = 40555576.

The previous prime is 40555549. The next prime is 40555583. The reversal of 40555577 is 77555504.

40555577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29986576 + 10569001 = 5476^2 + 3251^2 .

It is a cyclic number.

It is not a de Polignac number, because 40555577 - 2⁶ = 40555513 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40555577.

It is not a weakly prime, because it can be changed into another prime (40555507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20277788 + 20277789.

It is an arithmetic number, because the mean of its divisors is an integer number (20277789).

Almost surely, 2^40555577 is an apocalyptic number.

It is an amenable number.

40555577 is a deficient number, since it is larger than the sum of its proper divisors (1).

40555577 is an equidigital number, since it uses as much as digits as its factorization.

40555577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122500, while the sum is 38.

The square root of 40555577 is about 6368.3260751943. The cubic root of 40555577 is about 343.5712868510.

The spelling of 40555577 in words is "forty million, five hundred fifty-five thousand, five hundred seventy-seven".