9925492725626 has 16 divisors (see below), whose sum is σ = 14968015288200. Its totient is φ = 4936197085248.

The previous prime is 9925492725611. The next prime is 9925492725647. The reversal of 9925492725626 is 6265272945299.

It is a happy number.

It is a Cunningham number, because it is equal to 3150475²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 9244123372225 + 681369353401 = 3040415^2 + 825451^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10232681 + ... + 11160588.

Almost surely, 2^{9925492725626} is an apocalyptic number.

9925492725626 is a deficient number, since it is larger than the sum of its proper divisors (5042522562574).

9925492725626 is a wasteful number, since it uses less digits than its factorization.

9925492725626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21394513.

The product of its digits is 293932800, while the sum is 68.

The spelling of 9925492725626 in words is "nine trillion, nine hundred twenty-five billion, four hundred ninety-two million, seven hundred twenty-five thousand, six hundred twenty-six".