53473220 has 48 divisors (see below), whose sum is σ = 119380800. Its totient is φ = 20062080.

The previous prime is 53473193. The next prime is 53473241. The reversal of 53473220 is 2237435.

It is a self number, because there is not a number n which added to its sum of digits gives 53473220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40775 + ... + 42065.

It is an arithmetic number, because the mean of its divisors is an integer number (2487100).

Almost surely, 2^53473220 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 53473220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59690400).

53473220 is an abundant number, since it is smaller than the sum of its proper divisors (65907580).

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

53473220 is a wasteful number, since it uses less digits than its factorization.

53473220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1426 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 53473220 is about 7312.5385469069. The cubic root of 53473220 is about 376.7432202283.

The spelling of 53473220 in words is "fifty-three million, four hundred seventy-three thousand, two hundred twenty".