40515505441 has 2 divisors, whose sum is σ = 40515505442. Its totient is φ = 40515505440.

The previous prime is 40515505427. The next prime is 40515505453. The reversal of 40515505441 is 14450551504.

40515505441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39961609216 + 553896225 = 199904^2 + 23535^2 .

It is a cyclic number.

It is not a de Polignac number, because 40515505441 - 2¹¹ = 40515503393 is a prime.

It is a super-2 number, since 2×40515505441² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40515505397 and 40515505406.

It is not a weakly prime, because it can be changed into another prime (40515505141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20257752720 + 20257752721.

It is an arithmetic number, because the mean of its divisors is an integer number (20257752721).

Almost surely, 2^40515505441 is an apocalyptic number.

It is an amenable number.

40515505441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40515505441 is an equidigital number, since it uses as much as digits as its factorization.

40515505441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 40515505441 in words is "forty billion, five hundred fifteen million, five hundred five thousand, four hundred forty-one".