40532405513 has 2 divisors, whose sum is σ = 40532405514. Its totient is φ = 40532405512.

The previous prime is 40532405509. The next prime is 40532405539. The reversal of 40532405513 is 31550423504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37007371129 + 3525034384 = 192373^2 + 59372^2 .

It is a cyclic number.

It is not a de Polignac number, because 40532405513 - 2² = 40532405509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40532405513.

It is not a weakly prime, because it can be changed into another prime (40532405113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20266202756 + 20266202757.

It is an arithmetic number, because the mean of its divisors is an integer number (20266202757).

Almost surely, 2^40532405513 is an apocalyptic number.

It is an amenable number.

40532405513 is a deficient number, since it is larger than the sum of its proper divisors (1).

40532405513 is an equidigital number, since it uses as much as digits as its factorization.

40532405513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 40532405513 in words is "forty billion, five hundred thirty-two million, four hundred five thousand, five hundred thirteen".