53130420 has 144 divisors (see below), whose sum is σ = 186076800. Its totient is φ = 12019968.

The previous prime is 53130401. The next prime is 53130421. The reversal of 53130420 is 2403135.

53130420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 53130393 and 53130402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53130421) 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 47 ways as a sum of consecutive naturals, for example, 187599 + ... + 187881.

It is an arithmetic number, because the mean of its divisors is an integer number (1292200).

Almost surely, 2^53130420 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 53130420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93038400).

53130420 is an abundant number, since it is smaller than the sum of its proper divisors (132946380).

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

53130420 is a wasteful number, since it uses less digits than its factorization.

53130420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 53130420 is about 7289.0616680064. The cubic root of 53130420 is about 375.9364329690.

Adding to 53130420 its reverse (2403135), we get a palindrome (55533555).

The spelling of 53130420 in words is "fifty-three million, one hundred thirty thousand, four hundred twenty".