80725659 has 8 divisors (see below), whose sum is σ = 123010560. Its totient is φ = 46128936.

The previous prime is 80725637. The next prime is 80725681. The reversal of 80725659 is 95652708.

It is an interprime number because it is at equal distance from previous prime (80725637) and next prime (80725681).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80725659 - 2⁵ = 80725627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80725659.

It is not an unprimeable number, because it can be changed into a prime (80725459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922019 + ... + 1922060.

It is an arithmetic number, because the mean of its divisors is an integer number (15376320).

Almost surely, 2^80725659 is an apocalyptic number.

80725659 is a deficient number, since it is larger than the sum of its proper divisors (42284901).

80725659 is a wasteful number, since it uses less digits than its factorization.

80725659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844089.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 80725659 is about 8984.7459062569. The cubic root of 80725659 is about 432.1858393251.

It can be divided in two parts, 8072 and 5659, that added together give a palindrome (13731).

The spelling of 80725659 in words is "eighty million, seven hundred twenty-five thousand, six hundred fifty-nine".