53373609 has 6 divisors (see below), whose sum is σ = 77095226. Its totient is φ = 35582400.

The previous prime is 53373577. The next prime is 53373631. The reversal of 53373609 is 90637335.

It can be written as a sum of positive squares in only one way, i.e., 44355600 + 9018009 = 6660^2 + 3003^2 .

It is not a de Polignac number, because 53373609 - 2⁵ = 53373577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53373709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2965192 + ... + 2965209.

Almost surely, 2^53373609 is an apocalyptic number.

It is an amenable number.

53373609 is a deficient number, since it is larger than the sum of its proper divisors (23721617).

53373609 is a wasteful number, since it uses less digits than its factorization.

53373609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930407 (or 5930404 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 36.

The square root of 53373609 is about 7305.7243994008. The cubic root of 53373609 is about 376.5091398447.

The spelling of 53373609 in words is "fifty-three million, three hundred seventy-three thousand, six hundred nine".