40552453 has 2 divisors, whose sum is σ = 40552454. Its totient is φ = 40552452.

The previous prime is 40552451. The next prime is 40552471. The reversal of 40552453 is 35425504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40360609 + 191844 = 6353^2 + 438^2 .

It is a cyclic number.

It is not a de Polignac number, because 40552453 - 2¹ = 40552451 is a prime.

Together with 40552451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40552451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276226 + 20276227.

It is an arithmetic number, because the mean of its divisors is an integer number (20276227).

Almost surely, 2^40552453 is an apocalyptic number.

It is an amenable number.

40552453 is a deficient number, since it is larger than the sum of its proper divisors (1).

40552453 is an equidigital number, since it uses as much as digits as its factorization.

40552453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 40552453 is about 6368.0807940855. The cubic root of 40552453 is about 343.5624648480.

Adding to 40552453 its reverse (35425504), we get a palindrome (75977957).

The spelling of 40552453 in words is "forty million, five hundred fifty-two thousand, four hundred fifty-three".