83085553 has 4 divisors (see below), whose sum is σ = 83223040. Its totient is φ = 82948068.

The previous prime is 83085491. The next prime is 83085593. The reversal of 83085553 is 35558038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83085553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83085593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67833 + ... + 69046.

It is an arithmetic number, because the mean of its divisors is an integer number (20805760).

Almost surely, 2^83085553 is an apocalyptic number.

It is an amenable number.

83085553 is a deficient number, since it is larger than the sum of its proper divisors (137487).

83085553 is a wasteful number, since it uses less digits than its factorization.

83085553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137486.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 83085553 is about 9115.1277006962. The cubic root of 83085553 is about 436.3568904720.

It can be divided in two parts, 83085 and 553, that added together give a palindrome (83638).

The spelling of 83085553 in words is "eighty-three million, eighty-five thousand, five hundred fifty-three".