40553563 has 2 divisors, whose sum is σ = 40553564. Its totient is φ = 40553562.

The previous prime is 40553519. The next prime is 40553587. The reversal of 40553563 is 36535504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40553563 - 2²⁵ = 6999131 is a prime.

It is not a weakly prime, because it can be changed into another prime (40503563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276781 + 20276782.

It is an arithmetic number, because the mean of its divisors is an integer number (20276782).

Almost surely, 2^40553563 is an apocalyptic number.

40553563 is a deficient number, since it is larger than the sum of its proper divisors (1).

40553563 is an equidigital number, since it uses as much as digits as its factorization.

40553563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 40553563 is about 6368.1679469059. The cubic root of 40553563 is about 343.5655994784.

The spelling of 40553563 in words is "forty million, five hundred fifty-three thousand, five hundred sixty-three".