5151220715 has 4 divisors (see below), whose sum is σ = 6181464864. Its totient is φ = 4120976568.

The previous prime is 5151220709. The next prime is 5151220721. The reversal of 5151220715 is 5170221515.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5151220709) and next prime (5151220721).

It is a cyclic number.

It is not a de Polignac number, because 5151220715 - 2²⁴ = 5134443499 is a prime.

It is a super-2 number, since 2×5151220715² = 53070149709290222450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515122067 + ... + 515122076.

It is an arithmetic number, because the mean of its divisors is an integer number (1545366216).

Almost surely, 2^5151220715 is an apocalyptic number.

5151220715 is a deficient number, since it is larger than the sum of its proper divisors (1030244149).

5151220715 is a wasteful number, since it uses less digits than its factorization.

5151220715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030244148.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 5151220715 is about 71772.0050925150. The cubic root of 5151220715 is about 1727.0439360912.

It can be divided in two parts, 51512 and 20715, that added together give a palindrome (72227).

The spelling of 5151220715 in words is "five billion, one hundred fifty-one million, two hundred twenty thousand, seven hundred fifteen".