82231560 has 48 divisors (see below), whose sum is σ = 267253740. Its totient is φ = 21928320.

The previous prime is 82231549. The next prime is 82231577. The reversal of 82231560 is 6513228.

82231560 is a `hidden beast` number, since 82 + 23 + 1 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 82192356 + 39204 = 9066^2 + 198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113851 + ... + 114570.

Almost surely, 2^82231560 is an apocalyptic number.

It is an amenable number.

82231560 is an abundant number, since it is smaller than the sum of its proper divisors (185022180).

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

82231560 is a wasteful number, since it uses less digits than its factorization.

82231560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228438 (or 228431 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 82231560 is about 9068.1618865126. The cubic root of 82231560 is about 434.8567106335.

Adding to 82231560 its reverse (6513228), we get a palindrome (88744788).

The spelling of 82231560 in words is "eighty-two million, two hundred thirty-one thousand, five hundred sixty".