40575571 has 2 divisors, whose sum is σ = 40575572. Its totient is φ = 40575570.

The previous prime is 40575533. The next prime is 40575599. The reversal of 40575571 is 17557504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40575571 - 2¹⁷ = 40444499 is a prime.

It is not a weakly prime, because it can be changed into another prime (40515571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20287785 + 20287786.

It is an arithmetic number, because the mean of its divisors is an integer number (20287786).

Almost surely, 2^40575571 is an apocalyptic number.

40575571 is a deficient number, since it is larger than the sum of its proper divisors (1).

40575571 is an equidigital number, since it uses as much as digits as its factorization.

40575571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 40575571 is about 6369.8956820344. The cubic root of 40575571 is about 343.6277380738.

The spelling of 40575571 in words is "forty million, five hundred seventy-five thousand, five hundred seventy-one".