80725318 has 16 divisors (see below), whose sum is σ = 122394384. Its totient is φ = 39929760.

The previous prime is 80725313. The next prime is 80725321. The reversal of 80725318 is 81352708.

It is a super-2 number, since 2×80725318² = 13033153932402248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80725313) 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, 99133 + ... + 99943.

It is an arithmetic number, because the mean of its divisors is an integer number (7649649).

Almost surely, 2^80725318 is an apocalyptic number.

80725318 is a deficient number, since it is larger than the sum of its proper divisors (41669066).

80725318 is a wasteful number, since it uses less digits than its factorization.

80725318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 80725318 is about 8984.7269296290. The cubic root of 80725318 is about 432.1852307801.

The spelling of 80725318 in words is "eighty million, seven hundred twenty-five thousand, three hundred eighteen".