2053561543 has 24 divisors (see below), whose sum is σ = 2356174800. Its totient is φ = 1786202880.

The previous prime is 2053561541. The next prime is 2053561561. The reversal of 2053561543 is 3451653502.

It is not a de Polignac number, because 2053561543 - 2¹ = 2053561541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2053561499 and 2053561508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053561541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393928 + ... + 399106.

It is an arithmetic number, because the mean of its divisors is an integer number (98173950).

Almost surely, 2^2053561543 is an apocalyptic number.

2053561543 is a deficient number, since it is larger than the sum of its proper divisors (302613257).

2053561543 is a wasteful number, since it uses less digits than its factorization.

2053561543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5343 (or 5332 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 2053561543 is about 45316.2392857130. The cubic root of 2053561543 is about 1271.0693337340.

The spelling of 2053561543 in words is "two billion, fifty-three million, five hundred sixty-one thousand, five hundred forty-three".