53815828 has 24 divisors (see below), whose sum is σ = 108148320. Its totient is φ = 23173920.

The previous prime is 53815823. The next prime is 53815841. The reversal of 53815828 is 82851835.

It is a super-2 number, since 2×53815828² = 5792286686651168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53815823) 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, 31351 + ... + 33022.

It is an arithmetic number, because the mean of its divisors is an integer number (4506180).

Almost surely, 2^53815828 is an apocalyptic number.

It is an amenable number.

53815828 is an abundant number, since it is smaller than the sum of its proper divisors (54332492).

53815828 is a wasteful number, since it uses less digits than its factorization.

53815828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64407 (or 64405 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 53815828 is about 7335.9272079268. The cubic root of 53815828 is about 377.5461177814.

The spelling of 53815828 in words is "fifty-three million, eight hundred fifteen thousand, eight hundred twenty-eight".