40550011 has 4 divisors (see below), whose sum is σ = 40600224. Its totient is φ = 40499800.

The previous prime is 40549997. The next prime is 40550023. The reversal of 40550011 is 11005504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40550011 - 2⁵ = 40549979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40550911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23875 + ... + 25516.

It is an arithmetic number, because the mean of its divisors is an integer number (10150056).

Almost surely, 2^40550011 is an apocalyptic number.

40550011 is a deficient number, since it is larger than the sum of its proper divisors (50213).

40550011 is an equidigital number, since it uses as much as digits as its factorization.

40550011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50212.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 40550011 is about 6367.8890536818. The cubic root of 40550011 is about 343.5555684598. Note that the first 4 decimals are identical.

Adding to 40550011 its reverse (11005504), we get a palindrome (51555515).

The spelling of 40550011 in words is "forty million, five hundred fifty thousand, eleven".