5115513542 has 4 divisors (see below), whose sum is σ = 7673270316. Its totient is φ = 2557756770.

The previous prime is 5115513539. The next prime is 5115513547. The reversal of 5115513542 is 2453155115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2453155115 = 5 ⋅490631023.

It is a junction number, because it is equal to n+sod(n) for n = 5115513499 and 5115513508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115513547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278878384 + ... + 1278878387.

It is an arithmetic number, because the mean of its divisors is an integer number (1918317579).

Almost surely, 2^5115513542 is an apocalyptic number.

5115513542 is a deficient number, since it is larger than the sum of its proper divisors (2557756774).

5115513542 is a wasteful number, since it uses less digits than its factorization.

5115513542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557756773.

The product of its digits is 15000, while the sum is 32.

The square root of 5115513542 is about 71522.8183309355. The cubic root of 5115513542 is about 1723.0441788289.

Adding to 5115513542 its reverse (2453155115), we get a palindrome (7568668657).

The spelling of 5115513542 in words is "five billion, one hundred fifteen million, five hundred thirteen thousand, five hundred forty-two".