53045009 has 4 divisors (see below), whose sum is σ = 53074980. Its totient is φ = 53015040.

The previous prime is 53044993. The next prime is 53045029. The reversal of 53045009 is 90054035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19114384 + 33930625 = 4372^2 + 5825^2 .

It is a cyclic number.

It is not a de Polignac number, because 53045009 - 2⁴ = 53044993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53045029) 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, 12152 + ... + 15929.

It is an arithmetic number, because the mean of its divisors is an integer number (13268745).

Almost surely, 2^53045009 is an apocalyptic number.

It is an amenable number.

53045009 is a deficient number, since it is larger than the sum of its proper divisors (29971).

53045009 is a wasteful number, since it uses less digits than its factorization.

53045009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29970.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 53045009 is about 7283.2004640817. The cubic root of 53045009 is about 375.7348765727.

The spelling of 53045009 in words is "fifty-three million, forty-five thousand, nine".