2543115513 has 8 divisors (see below), whose sum is σ = 3392084128. Its totient is φ = 1694778624.

The previous prime is 2543115469. The next prime is 2543115521. The reversal of 2543115513 is 3155113452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2543115513 - 2¹⁴ = 2543099129 is a prime.

It is a super-2 number, since 2×2543115513² = 12934873024922506338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543115593) 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 7 ways as a sum of consecutive naturals, for example, 148456 + ... + 164697.

It is an arithmetic number, because the mean of its divisors is an integer number (424010516).

Almost surely, 2^2543115513 is an apocalyptic number.

It is an amenable number.

2543115513 is a deficient number, since it is larger than the sum of its proper divisors (848968615).

2543115513 is a wasteful number, since it uses less digits than its factorization.

2543115513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315863.

The product of its digits is 9000, while the sum is 30.

The square root of 2543115513 is about 50429.3120417084. The cubic root of 2543115513 is about 1364.9666140582.

Adding to 2543115513 its reverse (3155113452), we get a palindrome (5698228965).

The spelling of 2543115513 in words is "two billion, five hundred forty-three million, one hundred fifteen thousand, five hundred thirteen".