15225527125 has 16 divisors (see below), whose sum is σ = 19026287280. Its totient is φ = 12164505600.

The previous prime is 15225527117. The next prime is 15225527129. The reversal of 15225527125 is 52172552251.

It is a happy number.

15225527125 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 8 ways, for example, as 1674937476 + 13550589649 = 40926^2 + 116407^2 .

It is not a de Polignac number, because 15225527125 - 2³ = 15225527117 is a prime.

It is a super-2 number, since 2×15225527125² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225527129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16929 + ... + 175321.

It is an arithmetic number, because the mean of its divisors is an integer number (1189142955).

Almost surely, 2^15225527125 is an apocalyptic number.

It is an amenable number.

15225527125 is a deficient number, since it is larger than the sum of its proper divisors (3800760155).

15225527125 is an equidigital number, since it uses as much as digits as its factorization.

15225527125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159177 (or 159167 counting only the distinct ones).

The product of its digits is 70000, while the sum is 37.

The spelling of 15225527125 in words is "fifteen billion, two hundred twenty-five million, five hundred twenty-seven thousand, one hundred twenty-five".