79528025 has 12 divisors (see below), whose sum is σ = 99967932. Its totient is φ = 62749440.

The previous prime is 79528019. The next prime is 79528049. The reversal of 79528025 is 52082597.

It can be written as a sum of positive squares in 6 ways, for example, as 4376464 + 75151561 = 2092^2 + 8669^2 .

It is not a de Polignac number, because 79528025 - 2¹⁶ = 79462489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79528025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19964 + ... + 23613.

It is an arithmetic number, because the mean of its divisors is an integer number (8330661).

Almost surely, 2^79528025 is an apocalyptic number.

It is an amenable number.

79528025 is a deficient number, since it is larger than the sum of its proper divisors (20439907).

79528025 is a wasteful number, since it uses less digits than its factorization.

79528025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43660 (or 43655 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 79528025 is about 8917.8486755495. The cubic root of 79528025 is about 430.0379000306.

The spelling of 79528025 in words is "seventy-nine million, five hundred twenty-eight thousand, twenty-five".