40537559 has 2 divisors, whose sum is σ = 40537560. Its totient is φ = 40537558.

The previous prime is 40537529. The next prime is 40537577. The reversal of 40537559 is 95573504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40537559 - 2²⁰ = 39488983 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40537529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20268779 + 20268780.

It is an arithmetic number, because the mean of its divisors is an integer number (20268780).

Almost surely, 2^40537559 is an apocalyptic number.

40537559 is a deficient number, since it is larger than the sum of its proper divisors (1).

40537559 is an equidigital number, since it uses as much as digits as its factorization.

40537559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 40537559 is about 6366.9112605721. The cubic root of 40537559 is about 343.5203987866.

The spelling of 40537559 in words is "forty million, five hundred thirty-seven thousand, five hundred fifty-nine".