40552404055529 has 2 divisors, whose sum is σ = 40552404055530. Its totient is φ = 40552404055528.

The previous prime is 40552404055489. The next prime is 40552404055531. The reversal of 40552404055529 is 92555040425504.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28497286741225 + 12055117314304 = 5338285^2 + 3472048^2 .

It is a cyclic number.

It is not a de Polignac number, because 40552404055529 - 2²⁰ = 40552403006953 is a prime.

Together with 40552404055531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40552404055589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20276202027764 + 20276202027765.

It is an arithmetic number, because the mean of its divisors is an integer number (20276202027765).

Almost surely, 2^{40552404055529} is an apocalyptic number.

It is an amenable number.

40552404055529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40552404055529 is an equidigital number, since it uses as much as digits as its factorization.

40552404055529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200000, while the sum is 50.

The spelling of 40552404055529 in words is "forty trillion, five hundred fifty-two billion, four hundred four million, fifty-five thousand, five hundred twenty-nine".