83605253 has 4 divisors (see below), whose sum is σ = 87240288. Its totient is φ = 79970220.

The previous prime is 83605229. The next prime is 83605267. The reversal of 83605253 is 35250638.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35250638 = 2 ⋅17625319.

It is a cyclic number.

It is not a de Polignac number, because 83605253 - 2⁶ = 83605189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83605283) 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, 1817483 + ... + 1817528.

It is an arithmetic number, because the mean of its divisors is an integer number (21810072).

Almost surely, 2^83605253 is an apocalyptic number.

It is an amenable number.

83605253 is a deficient number, since it is larger than the sum of its proper divisors (3635035).

83605253 is a wasteful number, since it uses less digits than its factorization.

83605253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635034.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 83605253 is about 9143.5908154291. The cubic root of 83605253 is about 437.2648039780.

The spelling of 83605253 in words is "eighty-three million, six hundred five thousand, two hundred fifty-three".