40535543 has 2 divisors, whose sum is σ = 40535544. Its totient is φ = 40535542.

The previous prime is 40535527. The next prime is 40535549. The reversal of 40535543 is 34553504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40535543 - 2⁴ = 40535527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40535549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20267771 + 20267772.

It is an arithmetic number, because the mean of its divisors is an integer number (20267772).

Almost surely, 2^40535543 is an apocalyptic number.

40535543 is a deficient number, since it is larger than the sum of its proper divisors (1).

40535543 is an equidigital number, since it uses as much as digits as its factorization.

40535543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 40535543 is about 6366.7529400786. The cubic root of 40535543 is about 343.5147040793.

The spelling of 40535543 in words is "forty million, five hundred thirty-five thousand, five hundred forty-three".