79320025 has 6 divisors (see below), whose sum is σ = 98356862. Its totient is φ = 63456000.

The previous prime is 79319987. The next prime is 79320049. The reversal of 79320025 is 52002397.

It can be written as a sum of positive squares in 3 ways, for example, as 38809 + 79281216 = 197^2 + 8904^2 .

It is not a de Polignac number, because 79320025 - 2¹⁷ = 79188953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79319975 and 79320002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1586376 + ... + 1586425.

Almost surely, 2^79320025 is an apocalyptic number.

It is an amenable number.

79320025 is a deficient number, since it is larger than the sum of its proper divisors (19036837).

79320025 is a wasteful number, since it uses less digits than its factorization.

79320025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172811 (or 3172806 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 79320025 is about 8906.1790348050. The cubic root of 79320025 is about 429.6626613300.

The spelling of 79320025 in words is "seventy-nine million, three hundred twenty thousand, twenty-five".