80813052 has 72 divisors (see below), whose sum is σ = 215010432. Its totient is φ = 26535600.

The previous prime is 80813027. The next prime is 80813093. The reversal of 80813052 is 25031808.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68427 + ... + 69597.

It is an arithmetic number, because the mean of its divisors is an integer number (2986256).

Almost surely, 2^80813052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80813052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107505216).

80813052 is an abundant number, since it is smaller than the sum of its proper divisors (134197380).

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

80813052 is a wasteful number, since it uses less digits than its factorization.

80813052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 80813052 is about 8989.6080003524. The cubic root of 80813052 is about 432.3417434736.

The spelling of 80813052 in words is "eighty million, eight hundred thirteen thousand, fifty-two".