20435040252053 has 6 divisors (see below), whose sum is σ = 23771373354486. Its totient is φ = 17515748787432.

The previous prime is 20435040252017. The next prime is 20435040252073. The reversal of 20435040252053 is 35025204053402.

It can be written as a sum of positive squares in only one way, i.e., 20431647539044 + 3392713009 = 4520138^2 + 58247^2 .

It is not a de Polignac number, because 20435040252053 - 2¹⁴ = 20435040235669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435040252073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208520818850 + ... + 208520818947.

It is an arithmetic number, because the mean of its divisors is an integer number (3961895559081).

Almost surely, 2^{20435040252053} is an apocalyptic number.

It is an amenable number.

20435040252053 is a deficient number, since it is larger than the sum of its proper divisors (3336333102433).

20435040252053 is an equidigital number, since it uses as much as digits as its factorization.

20435040252053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417041637811 (or 417041637804 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 20435040252053 in words is "twenty trillion, four hundred thirty-five billion, forty million, two hundred fifty-two thousand, fifty-three".