40851563 has 2 divisors, whose sum is σ = 40851564. Its totient is φ = 40851562.

The previous prime is 40851533. The next prime is 40851581. The reversal of 40851563 is 36515804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40851563 - 2¹⁰ = 40850539 is a prime.

It is not a weakly prime, because it can be changed into another prime (40851523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20425781 + 20425782.

It is an arithmetic number, because the mean of its divisors is an integer number (20425782).

Almost surely, 2^40851563 is an apocalyptic number.

40851563 is a deficient number, since it is larger than the sum of its proper divisors (1).

40851563 is an equidigital number, since it uses as much as digits as its factorization.

40851563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 40851563 is about 6391.5227450116. The cubic root of 40851563 is about 344.4050882963.

It can be divided in two parts, 40851 and 563, that added together give a palindrome (41414).

The spelling of 40851563 in words is "forty million, eight hundred fifty-one thousand, five hundred sixty-three".