80511210 has 48 divisors (see below), whose sum is σ = 225434664. Its totient is φ = 19817856.

The previous prime is 80511199. The next prime is 80511217. The reversal of 80511210 is 1211508.

It can be written as a sum of positive squares in 4 ways, for example, as 72743841 + 7767369 = 8529^2 + 2787^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80511217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33237 + ... + 35576.

Almost surely, 2^80511210 is an apocalyptic number.

80511210 is an abundant number, since it is smaller than the sum of its proper divisors (144923454).

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

80511210 is a wasteful number, since it uses less digits than its factorization.

80511210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68839 (or 68836 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 80511210 is about 8972.8039095926. The cubic root of 80511210 is about 431.8027970814.

Adding to 80511210 its reverse (1211508), we get a palindrome (81722718).

It can be divided in two parts, 8051 and 1210, that added together give a cube (9261 = 21³).

The spelling of 80511210 in words is "eighty million, five hundred eleven thousand, two hundred ten".