83561260 has 12 divisors (see below), whose sum is σ = 175478688. Its totient is φ = 33424496.

The previous prime is 83561243. The next prime is 83561311. The reversal of 83561260 is 6216538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089012 + ... + 2089051.

It is an arithmetic number, because the mean of its divisors is an integer number (14623224).

Almost surely, 2^83561260 is an apocalyptic number.

It is an amenable number.

83561260 is an abundant number, since it is smaller than the sum of its proper divisors (91917428).

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

83561260 is a wasteful number, since it uses less digits than its factorization.

83561260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178072 (or 4178070 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 83561260 is about 9141.1848247369. The cubic root of 83561260 is about 437.1880944216.

Adding to 83561260 its reverse (6216538), we get a palindrome (89777798).

The spelling of 83561260 in words is "eighty-three million, five hundred sixty-one thousand, two hundred sixty".