83575553 has 8 divisors (see below), whose sum is σ = 88574472. Its totient is φ = 78585856.

The previous prime is 83575549. The next prime is 83575561. The reversal of 83575553 is 35557538.

It can be written as a sum of positive squares in 4 ways, for example, as 27804529 + 55771024 = 5273^2 + 7468^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83575553 - 2² = 83575549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83575553.

It is not an unprimeable number, because it can be changed into a prime (83575543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27401 + ... + 30297.

It is an arithmetic number, because the mean of its divisors is an integer number (11071809).

Almost surely, 2^83575553 is an apocalyptic number.

It is an amenable number.

83575553 is a deficient number, since it is larger than the sum of its proper divisors (4998919).

83575553 is a wasteful number, since it uses less digits than its factorization.

83575553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611.

The product of its digits is 315000, while the sum is 41.

The square root of 83575553 is about 9141.9665827436. The cubic root of 83575553 is about 437.2130197406.

The spelling of 83575553 in words is "eighty-three million, five hundred seventy-five thousand, five hundred fifty-three".