79958559222025 has 81 divisors (see below), whose sum is σ = 109526532283623. Its totient is φ = 57862317770400.

The previous prime is 79958559222011. The next prime is 79958559222041. The reversal of 79958559222025 is 52022295585997.

The square root of 79958559222025 is 8941955.

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

It can be written as a sum of positive squares in only one way, i.e., 28785081319929 + 51173477902096 = 5365173^2 + 7153564^2 .

It is not a de Polignac number, because 79958559222025 - 2¹¹ = 79958559219977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 180493361454 + ... + 180493361896.

Almost surely, 2^{79958559222025} is an apocalyptic number.

79958559222025 is the 8941955-th square number.

79958559222025 is the 4470978-th centered octagonal number.

It is an amenable number.

79958559222025 is a deficient number, since it is larger than the sum of its proper divisors (29567973061598).

79958559222025 is an frugal number, since it uses more digits than its factorization.

79958559222025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 408240000, while the sum is 70.

The spelling of 79958559222025 in words is "seventy-nine trillion, nine hundred fifty-eight billion, five hundred fifty-nine million, two hundred twenty-two thousand, twenty-five".