40504559 has 2 divisors, whose sum is σ = 40504560. Its totient is φ = 40504558.

The previous prime is 40504543. The next prime is 40504567. The reversal of 40504559 is 95540504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40504559 - 2⁴ = 40504543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40504589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20252279 + 20252280.

It is an arithmetic number, because the mean of its divisors is an integer number (20252280).

Almost surely, 2^40504559 is an apocalyptic number.

40504559 is a deficient number, since it is larger than the sum of its proper divisors (1).

40504559 is an equidigital number, since it uses as much as digits as its factorization.

40504559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 40504559 is about 6364.3192094677. The cubic root of 40504559 is about 343.4271580905.

The spelling of 40504559 in words is "forty million, five hundred four thousand, five hundred fifty-nine".