80518454 has 4 divisors (see below), whose sum is σ = 120777684. Its totient is φ = 40259226.

The previous prime is 80518441. The next prime is 80518457. The reversal of 80518454 is 45481508.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80518457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20129612 + ... + 20129615.

It is an arithmetic number, because the mean of its divisors is an integer number (30194421).

Almost surely, 2^80518454 is an apocalyptic number.

80518454 is a deficient number, since it is larger than the sum of its proper divisors (40259230).

80518454 is a wasteful number, since it uses less digits than its factorization.

80518454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40259229.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 80518454 is about 8973.2075647452. The cubic root of 80518454 is about 431.8157471855.

The spelling of 80518454 in words is "eighty million, five hundred eighteen thousand, four hundred fifty-four".