5115345251 has 4 divisors (see below), whose sum is σ = 5224182432. Its totient is φ = 5006508072.

The previous prime is 5115345233. The next prime is 5115345289. The reversal of 5115345251 is 1525435115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1525435115 = 5 ⋅305087023.

It is a cyclic number.

It is not a de Polignac number, because 5115345251 - 2¹⁸ = 5115083107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5115345211) 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, 54418520 + ... + 54418613.

It is an arithmetic number, because the mean of its divisors is an integer number (1306045608).

Almost surely, 2^5115345251 is an apocalyptic number.

5115345251 is a deficient number, since it is larger than the sum of its proper divisors (108837181).

5115345251 is a wasteful number, since it uses less digits than its factorization.

5115345251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108837180.

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

The square root of 5115345251 is about 71521.6418365798. The cubic root of 5115345251 is about 1723.0252836254.

The spelling of 5115345251 in words is "five billion, one hundred fifteen million, three hundred forty-five thousand, two hundred fifty-one".