40908563 has 2 divisors, whose sum is σ = 40908564. Its totient is φ = 40908562.

The previous prime is 40908557. The next prime is 40908587. The reversal of 40908563 is 36580904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40908563 - 2¹⁰ = 40907539 is a prime.

It is equal to p_2485556 and since 40908563 and 2485556 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40908163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20454281 + 20454282.

It is an arithmetic number, because the mean of its divisors is an integer number (20454282).

Almost surely, 2^40908563 is an apocalyptic number.

40908563 is a deficient number, since it is larger than the sum of its proper divisors (1).

40908563 is an equidigital number, since it uses as much as digits as its factorization.

40908563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40908563 is about 6395.9802219832. The cubic root of 40908563 is about 344.5651961378.

The spelling of 40908563 in words is "forty million, nine hundred eight thousand, five hundred sixty-three".