53256009 has 8 divisors (see below), whose sum is σ = 71042400. Its totient is φ = 35486816.

The previous prime is 53256001. The next prime is 53256041. The reversal of 53256009 is 90065235.

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 53256009 - 2³ = 53256001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53256001) 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, 7774 + ... + 12920.

It is an arithmetic number, because the mean of its divisors is an integer number (8880300).

Almost surely, 2^53256009 is an apocalyptic number.

It is an amenable number.

53256009 is a deficient number, since it is larger than the sum of its proper divisors (17786391).

53256009 is a wasteful number, since it uses less digits than its factorization.

53256009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 53256009 is about 7297.6714779442. The cubic root of 53256009 is about 376.2324111085.

The spelling of 53256009 in words is "fifty-three million, two hundred fifty-six thousand, nine".