40009253 has 2 divisors, whose sum is σ = 40009254. Its totient is φ = 40009252.

The previous prime is 40009201. The next prime is 40009261. The reversal of 40009253 is 35290004.

40009253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35438209 + 4571044 = 5953^2 + 2138^2 .

It is a cyclic number.

It is not a de Polignac number, because 40009253 - 2¹² = 40005157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40009273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20004626 + 20004627.

It is an arithmetic number, because the mean of its divisors is an integer number (20004627).

Almost surely, 2^40009253 is an apocalyptic number.

It is an amenable number.

40009253 is a deficient number, since it is larger than the sum of its proper divisors (1).

40009253 is an equidigital number, since it uses as much as digits as its factorization.

40009253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 40009253 is about 6325.2867919170. The cubic root of 40009253 is about 342.0215579813.

Adding to 40009253 its reverse (35290004), we get a palindrome (75299257).

The spelling of 40009253 in words is "forty million, nine thousand, two hundred fifty-three".