79758125 has 20 divisors (see below), whose sum is σ = 102389100. Its totient is φ = 62064000.

The previous prime is 79758113. The next prime is 79758131. The reversal of 79758125 is 52185797.

It can be written as a sum of positive squares in 10 ways, for example, as 69189124 + 10569001 = 8318^2 + 3251^2 .

It is not a de Polignac number, because 79758125 - 2⁸ = 79757869 is a prime.

It is a super-2 number, since 2×79758125² = 12722717007031250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21401 + ... + 24849.

It is an arithmetic number, because the mean of its divisors is an integer number (5119455).

Almost surely, 2^79758125 is an apocalyptic number.

It is an amenable number.

79758125 is a deficient number, since it is larger than the sum of its proper divisors (22630975).

79758125 is an equidigital number, since it uses as much as digits as its factorization.

79758125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506 (or 3491 counting only the distinct ones).

The product of its digits is 176400, while the sum is 44.

The square root of 79758125 is about 8930.7404508249. The cubic root of 79758125 is about 430.4522463817.

The spelling of 79758125 in words is "seventy-nine million, seven hundred fifty-eight thousand, one hundred twenty-five".