2042520543 has 40 divisors (see below), whose sum is σ = 3638688768. Its totient is φ = 1116401616.

The previous prime is 2042520499. The next prime is 2042520559. The reversal of 2042520543 is 3450252402.

It is a happy number.

It is not a de Polignac number, because 2042520543 - 2²⁸ = 1774085087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042520043) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 65271 + ... + 91352.

Almost surely, 2^2042520543 is an apocalyptic number.

2042520543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2042520543 is a deficient number, since it is larger than the sum of its proper divisors (1596168225).

2042520543 is a wasteful number, since it uses less digits than its factorization.

2042520543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156665 (or 156656 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2042520543 is about 45194.2534289482. The cubic root of 2042520543 is about 1268.7872654475.

Adding to 2042520543 its reverse (3450252402), we get a palindrome (5492772945).

The spelling of 2042520543 in words is "two billion, forty-two million, five hundred twenty thousand, five hundred forty-three".