40552421263 has 2 divisors, whose sum is σ = 40552421264. Its totient is φ = 40552421262.

The previous prime is 40552421243. The next prime is 40552421279. The reversal of 40552421263 is 36212425504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40552421263 - 2³³ = 31962486671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40552421233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276210631 + 20276210632.

It is an arithmetic number, because the mean of its divisors is an integer number (20276210632).

Almost surely, 2^40552421263 is an apocalyptic number.

40552421263 is a deficient number, since it is larger than the sum of its proper divisors (1).

40552421263 is an equidigital number, since it uses as much as digits as its factorization.

40552421263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 40552421263 its reverse (36212425504), we get a palindrome (76764846767).

The spelling of 40552421263 in words is "forty billion, five hundred fifty-two million, four hundred twenty-one thousand, two hundred sixty-three".