9925492725625 has 15 divisors (see below), whose sum is σ = 12402994131561. Its totient is φ = 7940331171000.

The previous prime is 9925492725611. The next prime is 9925492725647. The reversal of 9925492725625 is 5265272945299.

The square root of 9925492725625 is 3150475.

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

It can be written as a sum of positive squares in 2 ways, for example, as 778158629689 + 9147334095936 = 882133^2 + 3024456^2 .

It is not a de Polignac number, because 9925492725625 - 2⁵ = 9925492725593 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, 78698866 + ... + 78824884.

Almost surely, 2^{9925492725625} is an apocalyptic number.

9925492725625 is the 3150475-th square number.

9925492725625 is the 1575238-th centered octagonal number.

It is an amenable number.

9925492725625 is a deficient number, since it is larger than the sum of its proper divisors (2477501405936).

9925492725625 is an frugal number, since it uses more digits than its factorization.

9925492725625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252058 (or 126024 counting only the distinct ones).

The product of its digits is 244944000, while the sum is 67.

The spelling of 9925492725625 in words is "nine trillion, nine hundred twenty-five billion, four hundred ninety-two million, seven hundred twenty-five thousand, six hundred twenty-five".