79425330625 has 15 divisors (see below), whose sum is σ = 99258698143. Its totient is φ = 63534628000.

The previous prime is 79425330623. The next prime is 79425330629. The reversal of 79425330625 is 52603352497.

The square root of 79425330625 is 281825.

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 74875018689 + 4550311936 = 273633^2 + 67456^2 .

It is not a de Polignac number, because 79425330625 - 2¹ = 79425330623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79425330623) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7039989 + ... + 7051261.

Almost surely, 2^79425330625 is an apocalyptic number.

79425330625 is the 281825-th square number.

79425330625 is the 140913-rd centered octagonal number.

It is an amenable number.

79425330625 is a deficient number, since it is larger than the sum of its proper divisors (19833367518).

79425330625 is an frugal number, since it uses more digits than its factorization.

79425330625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22566 (or 11278 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 46.

The spelling of 79425330625 in words is "seventy-nine billion, four hundred twenty-five million, three hundred thirty thousand, six hundred twenty-five".