5245515245 has 4 divisors (see below), whose sum is σ = 6294618300. Its totient is φ = 4196412192.

The previous prime is 5245515211. The next prime is 5245515259. The reversal of 5245515245 is 5425155425.

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

It can be written as a sum of positive squares in 2 ways, for example, as 589227076 + 4656288169 = 24274^2 + 68237^2 .

It is a cyclic number.

It is not a de Polignac number, because 5245515245 - 2²⁴ = 5228738029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5245515199 and 5245515208.

It is a congruent 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, 524551520 + ... + 524551529.

It is an arithmetic number, because the mean of its divisors is an integer number (1573654575).

Almost surely, 2^5245515245 is an apocalyptic number.

It is an amenable number.

5245515245 is a deficient number, since it is larger than the sum of its proper divisors (1049103055).

5245515245 is a wasteful number, since it uses less digits than its factorization.

5245515245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049103054.

The product of its digits is 200000, while the sum is 38.

The square root of 5245515245 is about 72425.9293692528. The cubic root of 5245515245 is about 1737.5182885089.

The spelling of 5245515245 in words is "five billion, two hundred forty-five million, five hundred fifteen thousand, two hundred forty-five".