15756525625 has 15 divisors (see below), whose sum is σ = 19693276603. Its totient is φ = 12602710000.

The previous prime is 15756525611. The next prime is 15756525649. The reversal of 15756525625 is 52652565751.

The square root of 15756525625 is 125525.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 4957990569 + 10798535056 = 70413^2 + 103916^2 .

It is not a de Polignac number, because 15756525625 - 2¹³ = 15756517433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3135615 + ... + 3140635.

Almost surely, 2^15756525625 is an apocalyptic number.

15756525625 is the 125525-th square number.

15756525625 is the 62763-rd centered octagonal number.

It is an amenable number.

15756525625 is a deficient number, since it is larger than the sum of its proper divisors (3936750978).

15756525625 is an frugal number, since it uses more digits than its factorization.

15756525625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10062 (or 5026 counting only the distinct ones).

The product of its digits is 3150000, while the sum is 49.

Multiplying 15756525625 by its sum of digits (49), we get a square (772069755625 = 878675²).

The spelling of 15756525625 in words is "fifteen billion, seven hundred fifty-six million, five hundred twenty-five thousand, six hundred twenty-five".