53265509 has 8 divisors (see below), whose sum is σ = 58160928. Its totient is φ = 48378960.

The previous prime is 53265503. The next prime is 53265529. The reversal of 53265509 is 90556235.

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 53265509 - 2¹² = 53261413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53265503) 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, 20639 + ... + 23075.

It is an arithmetic number, because the mean of its divisors is an integer number (7270116).

Almost surely, 2^53265509 is an apocalyptic number.

It is an amenable number.

53265509 is a deficient number, since it is larger than the sum of its proper divisors (4895419).

53265509 is a wasteful number, since it uses less digits than its factorization.

53265509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 53265509 is about 7298.3223414700. The cubic root of 53265509 is about 376.2547810123.

It can be divided in two parts, 53 and 265509, that added together give a palindrome (265562).

The spelling of 53265509 in words is "fifty-three million, two hundred sixty-five thousand, five hundred nine".