5115615081 has 16 divisors (see below), whose sum is σ = 7491978240. Its totient is φ = 3090439440.

The previous prime is 5115615077. The next prime is 5115615097. The reversal of 5115615081 is 1805165115.

It is not a de Polignac number, because 5115615081 - 2² = 5115615077 is a prime.

It is a super-2 number, since 2×5115615081² = 52339035313909273122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5115615181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1949725 + ... + 1952346.

It is an arithmetic number, because the mean of its divisors is an integer number (468248640).

Almost surely, 2^5115615081 is an apocalyptic number.

It is an amenable number.

5115615081 is a deficient number, since it is larger than the sum of its proper divisors (2376363159).

5115615081 is a wasteful number, since it uses less digits than its factorization.

5115615081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902116.

The product of its (nonzero) digits is 6000, while the sum is 33.

The square root of 5115615081 is about 71523.5281638147. The cubic root of 5115615081 is about 1723.0555791196.

The spelling of 5115615081 in words is "five billion, one hundred fifteen million, six hundred fifteen thousand, eighty-one".