53228613 has 8 divisors (see below), whose sum is σ = 71119168. Its totient is φ = 35411904.

The previous prime is 53228599. The next prime is 53228657. The reversal of 53228613 is 31682235.

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

It is not a de Polignac number, because 53228613 - 2¹² = 53224517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53228213) 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, 16756 + ... + 19677.

It is an arithmetic number, because the mean of its divisors is an integer number (8889896).

Almost surely, 2^53228613 is an apocalyptic number.

It is an amenable number.

53228613 is a deficient number, since it is larger than the sum of its proper divisors (17890555).

53228613 is a wasteful number, since it uses less digits than its factorization.

53228613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36923.

The product of its digits is 8640, while the sum is 30.

The square root of 53228613 is about 7295.7941994001. The cubic root of 53228613 is about 376.1678861140.

The spelling of 53228613 in words is "fifty-three million, two hundred twenty-eight thousand, six hundred thirteen".