83553835538 has 4 divisors (see below), whose sum is σ = 125330753310. Its totient is φ = 41776917768.

The previous prime is 83553835537. The next prime is 83553835577.

83553835538 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56232059689 + 27321775849 = 237133^2 + 165293^2 .

It is a super-2 number, since 2×83553835538² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83553835531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20888458883 + ... + 20888458886.

Almost surely, 2^83553835538 is an apocalyptic number.

83553835538 is a deficient number, since it is larger than the sum of its proper divisors (41776917772).

83553835538 is a wasteful number, since it uses less digits than its factorization.

83553835538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41776917771.

The product of its digits is 25920000, while the sum is 56.

The spelling of 83553835538 in words is "eighty-three billion, five hundred fifty-three million, eight hundred thirty-five thousand, five hundred thirty-eight".