5151551515 has 16 divisors (see below), whose sum is σ = 6745245696. Its totient is φ = 3745807200.

The previous prime is 5151551417. The next prime is 5151551519.

5151551515 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5151551515 - 2¹¹ = 5151549467 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5151551519) 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, 494854 + ... + 505156.

It is an arithmetic number, because the mean of its divisors is an integer number (421577856).

Almost surely, 2^5151551515 is an apocalyptic number.

5151551515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5151551515 is a deficient number, since it is larger than the sum of its proper divisors (1593694181).

5151551515 is a wasteful number, since it uses less digits than its factorization.

5151551515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19410.

The product of its digits is 15625, while the sum is 34.

The square root of 5151551515 is about 71774.3095752234. The cubic root of 5151551515 is about 1727.0809042804.

The spelling of 5151551515 in words is "five billion, one hundred fifty-one million, five hundred fifty-one thousand, five hundred fifteen".