80529491 has 12 divisors (see below), whose sum is σ = 96909120. Its totient is φ = 66643920.

The previous prime is 80529479. The next prime is 80529503. The reversal of 80529491 is 19492508.

It is an interprime number because it is at equal distance from previous prime (80529479) and next prime (80529503).

It is not a de Polignac number, because 80529491 - 2¹⁰ = 80528467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80529451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26915 + ... + 29756.

It is an arithmetic number, because the mean of its divisors is an integer number (8075760).

Almost surely, 2^80529491 is an apocalyptic number.

80529491 is a deficient number, since it is larger than the sum of its proper divisors (16379629).

80529491 is a wasteful number, since it uses less digits than its factorization.

80529491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56714 (or 56707 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 80529491 is about 8973.8225411471. The cubic root of 80529491 is about 431.8354765453.

The spelling of 80529491 in words is "eighty million, five hundred twenty-nine thousand, four hundred ninety-one".