40550911 has 2 divisors, whose sum is σ = 40550912. Its totient is φ = 40550910.

The previous prime is 40550897. The next prime is 40550941. The reversal of 40550911 is 11905504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40550911 - 2⁹ = 40550399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40550941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20275455 + 20275456.

It is an arithmetic number, because the mean of its divisors is an integer number (20275456).

Almost surely, 2^40550911 is an apocalyptic number.

40550911 is a deficient number, since it is larger than the sum of its proper divisors (1).

40550911 is an equidigital number, since it uses as much as digits as its factorization.

40550911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 40550911 is about 6367.9597203500. The cubic root of 40550911 is about 343.5581101584.

The spelling of 40550911 in words is "forty million, five hundred fifty thousand, nine hundred eleven".