80258565 has 16 divisors (see below), whose sum is σ = 135172800. Its totient is φ = 40551552.

The previous prime is 80258561. The next prime is 80258567. The reversal of 80258565 is 56585208.

It is not a de Polignac number, because 80258565 - 2² = 80258561 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80258561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140520 + ... + 141089.

It is an arithmetic number, because the mean of its divisors is an integer number (8448300).

Almost surely, 2^80258565 is an apocalyptic number.

It is an amenable number.

80258565 is a deficient number, since it is larger than the sum of its proper divisors (54914235).

80258565 is a wasteful number, since it uses less digits than its factorization.

80258565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281636.

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 80258565 is about 8958.7144725122. The cubic root of 80258565 is about 431.3506566135.

The spelling of 80258565 in words is "eighty million, two hundred fifty-eight thousand, five hundred sixty-five".