53275609 has 4 divisors (see below), whose sum is σ = 53290404. Its totient is φ = 53260816.

The previous prime is 53275589. The next prime is 53275679. The reversal of 53275609 is 90657235.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 29539225 + 23736384 = 5435^2 + 4872^2 .

It is a cyclic number.

It is not a de Polignac number, because 53275609 - 2¹⁷ = 53144537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53275679) 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, 1899 + ... + 10495.

It is an arithmetic number, because the mean of its divisors is an integer number (13322601).

Almost surely, 2^53275609 is an apocalyptic number.

It is an amenable number.

53275609 is a deficient number, since it is larger than the sum of its proper divisors (14795).

53275609 is an equidigital number, since it uses as much as digits as its factorization.

53275609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14794.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 53275609 is about 7299.0142485133. The cubic root of 53275609 is about 376.2785608353.

The spelling of 53275609 in words is "fifty-three million, two hundred seventy-five thousand, six hundred nine".