79125220 has 12 divisors (see below), whose sum is σ = 166163004. Its totient is φ = 31650080.

The previous prime is 79125209. The next prime is 79125227. The reversal of 79125220 is 2252197.

It can be written as a sum of positive squares in 2 ways, for example, as 45670564 + 33454656 = 6758^2 + 5784^2 .

It is not an unprimeable number, because it can be changed into a prime (79125227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978111 + ... + 1978150.

It is an arithmetic number, because the mean of its divisors is an integer number (13846917).

Almost surely, 2^79125220 is an apocalyptic number.

It is an amenable number.

79125220 is an abundant number, since it is smaller than the sum of its proper divisors (87037784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79125220 is a wasteful number, since it uses less digits than its factorization.

79125220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956270 (or 3956268 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 79125220 is about 8895.2358035074. The cubic root of 79125220 is about 429.3106314805.

The spelling of 79125220 in words is "seventy-nine million, one hundred twenty-five thousand, two hundred twenty".