5251538351525 has 12 divisors (see below), whose sum is σ = 6512127960900. Its totient is φ = 4201088484480.

The previous prime is 5251538351519. The next prime is 5251538351533.

5251538351525 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 6 ways, for example, as 2984881637761 + 2266656713764 = 1727681^2 + 1505542^2 .

It is not a de Polignac number, because 5251538351525 - 2⁶ = 5251538351461 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2798360 + ... + 4281809.

It is an arithmetic number, because the mean of its divisors is an integer number (542677330075).

Almost surely, 2^{5251538351525} is an apocalyptic number.

It is an amenable number.

5251538351525 is a deficient number, since it is larger than the sum of its proper divisors (1260589609375).

5251538351525 is a wasteful number, since it uses less digits than its factorization.

5251538351525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7109848 (or 7109843 counting only the distinct ones).

The product of its digits is 4500000, while the sum is 50.

The spelling of 5251538351525 in words is "five trillion, two hundred fifty-one billion, five hundred thirty-eight million, three hundred fifty-one thousand, five hundred twenty-five".