53212120 has 64 divisors (see below), whose sum is σ = 133136640. Its totient is φ = 19008000.

The previous prime is 53212079. The next prime is 53212139. The reversal of 53212120 is 2121235.

It is a junction number, because it is equal to n+sod(n) for n = 53212094 and 53212103.

It is a congruent number.

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, 14470 + ... + 17770.

It is an arithmetic number, because the mean of its divisors is an integer number (2080260).

Almost surely, 2^53212120 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 53212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66568320).

53212120 is an abundant number, since it is smaller than the sum of its proper divisors (79924520).

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

53212120 is a wasteful number, since it uses less digits than its factorization.

53212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356 (or 3352 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 53212120 is about 7294.6638030824. The cubic root of 53212120 is about 376.1290299581.

Adding to 53212120 its reverse (2121235), we get a palindrome (55333355).

The spelling of 53212120 in words is "fifty-three million, two hundred twelve thousand, one hundred twenty".