79925530 has 16 divisors (see below), whose sum is σ = 146305440. Its totient is φ = 31428112.

The previous prime is 79925509. The next prime is 79925539. The reversal of 79925530 is 3552997.

It is not an unprimeable number, because it can be changed into a prime (79925539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67144 + ... + 68323.

It is an arithmetic number, because the mean of its divisors is an integer number (9144090).

Almost surely, 2^79925530 is an apocalyptic number.

79925530 is a deficient number, since it is larger than the sum of its proper divisors (66379910).

79925530 is a wasteful number, since it uses less digits than its factorization.

79925530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135533.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 79925530 is about 8940.1079411828. The cubic root of 79925530 is about 430.7531958726.

The spelling of 79925530 in words is "seventy-nine million, nine hundred twenty-five thousand, five hundred thirty".