40534253 has 2 divisors, whose sum is σ = 40534254. Its totient is φ = 40534252.

The previous prime is 40534243. The next prime is 40534271. The reversal of 40534253 is 35243504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32228329 + 8305924 = 5677^2 + 2882^2 .

It is a cyclic number.

It is not a de Polignac number, because 40534253 - 2⁴ = 40534237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40534213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20267126 + 20267127.

It is an arithmetic number, because the mean of its divisors is an integer number (20267127).

Almost surely, 2^40534253 is an apocalyptic number.

It is an amenable number.

40534253 is a deficient number, since it is larger than the sum of its proper divisors (1).

40534253 is an equidigital number, since it uses as much as digits as its factorization.

40534253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 40534253 is about 6366.6516317449. The cubic root of 40534253 is about 343.5110600454.

Adding to 40534253 its reverse (35243504), we get a palindrome (75777757).

The spelling of 40534253 in words is "forty million, five hundred thirty-four thousand, two hundred fifty-three".