53327813 has 16 divisors (see below), whose sum is σ = 69987840. Its totient is φ = 39366000.

The previous prime is 53327809. The next prime is 53327863. The reversal of 53327813 is 31872335.

It is a cyclic number.

It is not a de Polignac number, because 53327813 - 2² = 53327809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53327813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53327803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16763 + ... + 19688.

It is an arithmetic number, because the mean of its divisors is an integer number (4374240).

Almost surely, 2^53327813 is an apocalyptic number.

It is an amenable number.

53327813 is a deficient number, since it is larger than the sum of its proper divisors (16660027).

53327813 is a wasteful number, since it uses less digits than its factorization.

53327813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36488.

The product of its digits is 15120, while the sum is 32.

The square root of 53327813 is about 7302.5894722352. The cubic root of 53327813 is about 376.4014240229.

The spelling of 53327813 in words is "fifty-three million, three hundred twenty-seven thousand, eight hundred thirteen".