53804820 has 96 divisors (see below), whose sum is σ = 158957568. Its totient is φ = 13571712.

The previous prime is 53804791. The next prime is 53804857. The reversal of 53804820 is 2840835.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a plaindrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175107 + ... + 175413.

It is an arithmetic number, because the mean of its divisors is an integer number (1655808).

Almost surely, 2^53804820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53804820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79478784).

53804820 is an abundant number, since it is smaller than the sum of its proper divisors (105152748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53804820 is a wasteful number, since it uses less digits than its factorization.

53804820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 53804820 is about 7335.1768894826. The cubic root of 53804820 is about 377.5203737378.

The spelling of 53804820 in words is "fifty-three million, eight hundred four thousand, eight hundred twenty".