53083409 has 4 divisors (see below), whose sum is σ = 53100516. Its totient is φ = 53066304.

The previous prime is 53083403. The next prime is 53083447. The reversal of 53083409 is 90438035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90438035 = 5 ⋅18087607.

It can be written as a sum of positive squares in 2 ways, for example, as 18037009 + 35046400 = 4247^2 + 5920^2 .

It is a cyclic number.

It is not a de Polignac number, because 53083409 - 2¹⁶ = 53017873 is a prime.

It is a super-2 number, since 2×53083409² = 5635696622122562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53083403) 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, 2444 + ... + 10589.

It is an arithmetic number, because the mean of its divisors is an integer number (13275129).

Almost surely, 2^53083409 is an apocalyptic number.

It is an amenable number.

53083409 is a deficient number, since it is larger than the sum of its proper divisors (17107).

53083409 is a wasteful number, since it uses less digits than its factorization.

53083409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17106.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 53083409 is about 7285.8361908569. The cubic root of 53083409 is about 375.8255212242.

The spelling of 53083409 in words is "fifty-three million, eighty-three thousand, four hundred nine".