5215115125 has 24 divisors (see below), whose sum is σ = 7153951896. Its totient is φ = 3792800000.

The previous prime is 5215115119. The next prime is 5215115131.

5215115125 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (5215115119) and next prime (5215115131).

It can be written as a sum of positive squares in 4 ways, for example, as 421768369 + 4793346756 = 20537^2 + 69234^2 .

It is not a de Polignac number, because 5215115125 - 2¹⁵ = 5215082357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5215115093 and 5215115102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157276 + ... + 187525.

It is an arithmetic number, because the mean of its divisors is an integer number (298081329).

Almost surely, 2^5215115125 is an apocalyptic number.

5215115125 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5215115125 is a deficient number, since it is larger than the sum of its proper divisors (1938836771).

5215115125 is a wasteful number, since it uses less digits than its factorization.

5215115125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344838 (or 344817 counting only the distinct ones).

The product of its digits is 2500, while the sum is 28.

The square root of 5215115125 is about 72215.7539945406. The cubic root of 5215115125 is about 1734.1552166375.

It can be divided in two parts, 52151 and 15125, that added together give a palindrome (67276).

The spelling of 5215115125 in words is "five billion, two hundred fifteen million, one hundred fifteen thousand, one hundred twenty-five".