53412820 has 24 divisors (see below), whose sum is σ = 114008328. Its totient is φ = 21014400.

The previous prime is 53412773. The next prime is 53412839. The reversal of 53412820 is 2821435.

53412820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6791236 + 46621584 = 2606^2 + 6828^2 .

It is a super-3 number, since 3×53412820³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20671 + ... + 23110.

It is an arithmetic number, because the mean of its divisors is an integer number (4750347).

Almost surely, 2^53412820 is an apocalyptic number.

It is an amenable number.

53412820 is an abundant number, since it is smaller than the sum of its proper divisors (60595508).

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

53412820 is a wasteful number, since it uses less digits than its factorization.

53412820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43851 (or 43849 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 53412820 is about 7308.4074872711. The cubic root of 53412820 is about 376.6013182723.

The spelling of 53412820 in words is "fifty-three million, four hundred twelve thousand, eight hundred twenty".