80517975 has 12 divisors (see below), whose sum is σ = 133123176. Its totient is φ = 42942880.

The previous prime is 80517929. The next prime is 80517989. The reversal of 80517975 is 57971508.

It is not a de Polignac number, because 80517975 - 2⁶ = 80517911 is a prime.

It is a congruent number.

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, 536712 + ... + 536861.

It is an arithmetic number, because the mean of its divisors is an integer number (11093598).

Almost surely, 2^80517975 is an apocalyptic number.

80517975 is a deficient number, since it is larger than the sum of its proper divisors (52605201).

80517975 is a wasteful number, since it uses less digits than its factorization.

80517975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073586 (or 1073581 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 42.

The square root of 80517975 is about 8973.1808741382. The cubic root of 80517975 is about 431.8148909008.

The spelling of 80517975 in words is "eighty million, five hundred seventeen thousand, nine hundred seventy-five".