5115122440 has 16 divisors (see below), whose sum is σ = 11509025580. Its totient is φ = 2046048960.

The previous prime is 5115122431. The next prime is 5115122447. The reversal of 5115122440 is 442215115.

It can be written as a sum of positive squares in 2 ways, for example, as 5114824324 + 298116 = 71518^2 + 546^2 .

It is not an unprimeable number, because it can be changed into a prime (5115122447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63938991 + ... + 63939070.

Almost surely, 2^5115122440 is an apocalyptic number.

It is an amenable number.

5115122440 is an abundant number, since it is smaller than the sum of its proper divisors (6393903140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5115122440 is a wasteful number, since it uses less digits than its factorization.

5115122440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127878072 (or 127878068 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 5115122440 is about 71520.0841722100. The cubic root of 5115122440 is about 1723.0002664439. Note that the first 3 decimals are identical.

Adding to 5115122440 its reverse (442215115), we get a palindrome (5557337555).

The spelling of 5115122440 in words is "five billion, one hundred fifteen million, one hundred twenty-two thousand, four hundred forty".