53345420 has 48 divisors (see below), whose sum is σ = 116659200. Its totient is φ = 20468160.

The previous prime is 53345359. The next prime is 53345437. The reversal of 53345420 is 2454335.

It is a self number, because there is not a number n which added to its sum of digits gives 53345420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85871 + ... + 86489.

It is an arithmetic number, because the mean of its divisors is an integer number (2430400).

Almost surely, 2^53345420 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 53345420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58329600).

53345420 is an abundant number, since it is smaller than the sum of its proper divisors (63313780).

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

53345420 is a wasteful number, since it uses less digits than its factorization.

53345420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 53345420 is about 7303.7949040208. The cubic root of 53345420 is about 376.4428443767.

Adding to 53345420 its reverse (2454335), we get a palindrome (55799755).

The spelling of 53345420 in words is "fifty-three million, three hundred forty-five thousand, four hundred twenty".