40695559 has 2 divisors, whose sum is σ = 40695560. Its totient is φ = 40695558.

The previous prime is 40695541. The next prime is 40695583. The reversal of 40695559 is 95559604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40695559 - 2⁵ = 40695527 is a prime.

It is a super-2 number, since 2×40695559² = 3312257044644962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40695539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20347779 + 20347780.

It is an arithmetic number, because the mean of its divisors is an integer number (20347780).

Almost surely, 2^40695559 is an apocalyptic number.

40695559 is a deficient number, since it is larger than the sum of its proper divisors (1).

40695559 is an equidigital number, since it uses as much as digits as its factorization.

40695559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 43.

The square root of 40695559 is about 6379.3070940346. The cubic root of 40695559 is about 343.9661241880.

The spelling of 40695559 in words is "forty million, six hundred ninety-five thousand, five hundred fifty-nine".