53565513 has 8 divisors (see below), whose sum is σ = 71525376. Its totient is φ = 35658000.

The previous prime is 53565481. The next prime is 53565527. The reversal of 53565513 is 31556535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53565513 - 2⁵ = 53565481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53565583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10633 + ... + 14838.

It is an arithmetic number, because the mean of its divisors is an integer number (8940672).

Almost surely, 2^53565513 is an apocalyptic number.

It is an amenable number.

53565513 is a deficient number, since it is larger than the sum of its proper divisors (17959863).

53565513 is a wasteful number, since it uses less digits than its factorization.

53565513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26175.

The product of its digits is 33750, while the sum is 33.

The square root of 53565513 is about 7318.8464254963. The cubic root of 53565513 is about 376.9598444051.

The spelling of 53565513 in words is "fifty-three million, five hundred sixty-five thousand, five hundred thirteen".