80917725 has 48 divisors (see below), whose sum is σ = 154910720. Its totient is φ = 36504000.

The previous prime is 80917717. The next prime is 80917747. The reversal of 80917725 is 52771908.

It is not a de Polignac number, because 80917725 - 2³ = 80917717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40500 + ... + 42450.

Almost surely, 2^80917725 is an apocalyptic number.

It is an amenable number.

80917725 is a deficient number, since it is larger than the sum of its proper divisors (73992995).

80917725 is a wasteful number, since it uses less digits than its factorization.

80917725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 80917725 is about 8995.4280053814. The cubic root of 80917725 is about 432.5283262992.

The spelling of 80917725 in words is "eighty million, nine hundred seventeen thousand, seven hundred twenty-five".