80279520 has 48 divisors (see below), whose sum is σ = 252882000. Its totient is φ = 21407744.

The previous prime is 80279483. The next prime is 80279543. The reversal of 80279520 is 2597208.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83145 + ... + 84104.

It is an arithmetic number, because the mean of its divisors is an integer number (5268375).

Almost surely, 2^80279520 is an apocalyptic number.

80279520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80279520 is an abundant number, since it is smaller than the sum of its proper divisors (172602480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80279520 is a wasteful number, since it uses less digits than its factorization.

80279520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167267 (or 167259 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 80279520 is about 8959.8839278196. The cubic root of 80279520 is about 431.3881943162.

The spelling of 80279520 in words is "eighty million, two hundred seventy-nine thousand, five hundred twenty".