80516259 has 6 divisors (see below), whose sum is σ = 116301276. Its totient is φ = 53677500.

The previous prime is 80516239. The next prime is 80516263. The reversal of 80516259 is 95261508.

It is a happy number.

It is not a de Polignac number, because 80516259 - 2¹³ = 80508067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80516239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4473117 + ... + 4473134.

It is an arithmetic number, because the mean of its divisors is an integer number (19383546).

Almost surely, 2^80516259 is an apocalyptic number.

80516259 is a deficient number, since it is larger than the sum of its proper divisors (35785017).

80516259 is a wasteful number, since it uses less digits than its factorization.

80516259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946257 (or 8946254 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 80516259 is about 8973.0852553623. The cubic root of 80516259 is about 431.8118232644.

The spelling of 80516259 in words is "eighty million, five hundred sixteen thousand, two hundred fifty-nine".