40075559 has 2 divisors, whose sum is σ = 40075560. Its totient is φ = 40075558.

The previous prime is 40075523. The next prime is 40075561. The reversal of 40075559 is 95557004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40075559 - 2¹² = 40071463 is a prime.

Together with 40075561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40075589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20037779 + 20037780.

It is an arithmetic number, because the mean of its divisors is an integer number (20037780).

Almost surely, 2^40075559 is an apocalyptic number.

40075559 is a deficient number, since it is larger than the sum of its proper divisors (1).

40075559 is an equidigital number, since it uses as much as digits as its factorization.

40075559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 40075559 is about 6330.5259655103. The cubic root of 40075559 is about 342.2103940077.

The spelling of 40075559 in words is "forty million, seventy-five thousand, five hundred fifty-nine".