40253453 has 2 divisors, whose sum is σ = 40253454. Its totient is φ = 40253452.

The previous prime is 40253443. The next prime is 40253483. The reversal of 40253453 is 35435204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38217124 + 2036329 = 6182^2 + 1427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40253453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40253443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20126726 + 20126727.

It is an arithmetic number, because the mean of its divisors is an integer number (20126727).

Almost surely, 2^40253453 is an apocalyptic number.

It is an amenable number.

40253453 is a deficient number, since it is larger than the sum of its proper divisors (1).

40253453 is an equidigital number, since it uses as much as digits as its factorization.

40253453 is an odious number, because the sum of its binary digits is odd.

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

The square root of 40253453 is about 6344.5608989118. The cubic root of 40253453 is about 342.7159999316.

Adding to 40253453 its reverse (35435204), we get a palindrome (75688657).

The spelling of 40253453 in words is "forty million, two hundred fifty-three thousand, four hundred fifty-three".