40550023 has 2 divisors, whose sum is σ = 40550024. Its totient is φ = 40550022.

The previous prime is 40549997. The next prime is 40550057. The reversal of 40550023 is 32005504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40550023 - 2²¹ = 38452871 is a prime.

It is equal to p_2465110 and since 40550023 and 2465110 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40550063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20275011 + 20275012.

It is an arithmetic number, because the mean of its divisors is an integer number (20275012).

Almost surely, 2^40550023 is an apocalyptic number.

40550023 is a deficient number, since it is larger than the sum of its proper divisors (1).

40550023 is an equidigital number, since it uses as much as digits as its factorization.

40550023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 40550023 is about 6367.8899959092. The cubic root of 40550023 is about 343.5556023493. Note that the first 3 decimals are identical.

Adding to 40550023 its reverse (32005504), we get a palindrome (72555527).

The spelling of 40550023 in words is "forty million, five hundred fifty thousand, twenty-three".