80545320 has 256 divisors, whose sum is σ = 293932800. Its totient is φ = 19537920.

The previous prime is 80545307. The next prime is 80545327. The reversal of 80545320 is 2354508.

80545320 is a `hidden beast` number, since 80 + 54 + 532 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (80545327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 752707 + ... + 752813.

It is an arithmetic number, because the mean of its divisors is an integer number (1148175).

Almost surely, 2^80545320 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 80545320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146966400).

80545320 is an abundant number, since it is smaller than the sum of its proper divisors (213387480).

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

80545320 is a wasteful number, since it uses less digits than its factorization.

80545320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 80545320 is about 8974.7044519583. The cubic root of 80545320 is about 431.8637687724.

Adding to 80545320 its reverse (2354508), we get a palindrome (82899828).

The spelling of 80545320 in words is "eighty million, five hundred forty-five thousand, three hundred twenty".