40255173653 has 2 divisors, whose sum is σ = 40255173654. Its totient is φ = 40255173652.

The previous prime is 40255173641. The next prime is 40255173683. The reversal of 40255173653 is 35637155204.

40255173653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23203514929 + 17051658724 = 152327^2 + 130582^2 .

It is a cyclic number.

It is not a de Polignac number, because 40255173653 - 2²⁶ = 40188064789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40255173653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40255173683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127586826 + 20127586827.

It is an arithmetic number, because the mean of its divisors is an integer number (20127586827).

Almost surely, 2^40255173653 is an apocalyptic number.

It is an amenable number.

40255173653 is a deficient number, since it is larger than the sum of its proper divisors (1).

40255173653 is an equidigital number, since it uses as much as digits as its factorization.

40255173653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 40255173653 in words is "forty billion, two hundred fifty-five million, one hundred seventy-three thousand, six hundred fifty-three".