53170420 has 12 divisors (see below), whose sum is σ = 111657924. Its totient is φ = 21268160.

The previous prime is 53170393. The next prime is 53170433. The reversal of 53170420 is 2407135.

53170420 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 2 ways, for example, as 11102224 + 42068196 = 3332^2 + 6486^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53170391 and 53170400.

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 3 ways as a sum of consecutive naturals, for example, 1329241 + ... + 1329280.

It is an arithmetic number, because the mean of its divisors is an integer number (9304827).

Almost surely, 2^53170420 is an apocalyptic number.

It is an amenable number.

53170420 is an abundant number, since it is smaller than the sum of its proper divisors (58487504).

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

53170420 is a wasteful number, since it uses less digits than its factorization.

53170420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658530 (or 2658528 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 53170420 is about 7291.8049891642. The cubic root of 53170420 is about 376.0307523512.

Adding to 53170420 its reverse (2407135), we get a palindrome (55577555).

The spelling of 53170420 in words is "fifty-three million, one hundred seventy thousand, four hundred twenty".