40450253 has 2 divisors, whose sum is σ = 40450254. Its totient is φ = 40450252.

The previous prime is 40450237. The next prime is 40450279. The reversal of 40450253 is 35205404.

40450253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39100009 + 1350244 = 6253^2 + 1162^2 .

It is a cyclic number.

It is not a de Polignac number, because 40450253 - 2⁴ = 40450237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40450153) 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, 20225126 + 20225127.

It is an arithmetic number, because the mean of its divisors is an integer number (20225127).

Almost surely, 2^40450253 is an apocalyptic number.

It is an amenable number.

40450253 is a deficient number, since it is larger than the sum of its proper divisors (1).

40450253 is an equidigital number, since it uses as much as digits as its factorization.

40450253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40450253 is about 6360.0513362708. The cubic root of 40450253 is about 343.2736075033.

Adding to 40450253 its reverse (35205404), we get a palindrome (75655657).

The spelling of 40450253 in words is "forty million, four hundred fifty thousand, two hundred fifty-three".