53122420 has 48 divisors (see below), whose sum is σ = 122209920. Its totient is φ = 19276416.

The previous prime is 53122411. The next prime is 53122427. The reversal of 53122420 is 2422135.

53122420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53122427) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13609 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (2546040).

Almost surely, 2^53122420 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 53122420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61104960).

53122420 is an abundant number, since it is smaller than the sum of its proper divisors (69087500).

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

53122420 is a wasteful number, since it uses less digits than its factorization.

53122420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544 (or 3542 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 53122420 is about 7288.5128798679. The cubic root of 53122420 is about 375.9175634122.

Adding to 53122420 its reverse (2422135), we get a palindrome (55544555).

The spelling of 53122420 in words is "fifty-three million, one hundred twenty-two thousand, four hundred twenty".