10115551525 has 24 divisors (see below), whose sum is σ = 12728916200. Its totient is φ = 7973510400.

The previous prime is 10115551517. The next prime is 10115551541. The reversal of 10115551525 is 52515551101.

It is a happy number.

10115551525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 6519270564 + 3596280961 = 80742^2 + 59969^2 .

It is not a de Polignac number, because 10115551525 - 2³ = 10115551517 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 482971 + ... + 503479.

Almost surely, 2^10115551525 is an apocalyptic number.

It is an amenable number.

10115551525 is a deficient number, since it is larger than the sum of its proper divisors (2613364675).

10115551525 is a wasteful number, since it uses less digits than its factorization.

10115551525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20809 (or 20804 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 31.

The spelling of 10115551525 in words is "ten billion, one hundred fifteen million, five hundred fifty-one thousand, five hundred twenty-five".